Alexis Sanchez's arrival has left the Arsenal squad "buzzing" ahead of the new campaign, according to defender Carl Jenkinson - with more new signings expected before the Community Shield against Manchester City at Wembley.
Arsene Wenger is set to return from his media duties at the World Cup this week, as the Gunners step up pre-season preparations which will see many players rejoin the group following international duty ahead of the friendly against the New York Red Bulls at the end of the month.
German trio Per Mertesacker, Lukas Podolski and Mesut Ozil, however, will be given some extra-time off following their success in Rio, with a full three weeks' break scheduled.
Reports in Spain suggest Arsenal are also intent on bringing in Sami Khedira from Real Madrid, while compatriot Lars Bender, who missed the World Cup through injury, is another reported target.
Press Association Sport understands while a defensive midfielder remains on Arsenal's target list, along with a right-back and goalkeeper cover, suggestions another big-money deal is imminent are premature.
Arsenal, though, did move swiftly to close out the transfer of Chile forward Sanchez in what is said to be a £30million deal from Barcelona.
Arsenal transfer talk: Potential summer targets
Arsenal transfer talk: Potential summer targets
1/14 Sami Khedira
The World Cup winner looks to be heading to the Emirates if the reports are to be believed, as the Real Madrid midfielder looks set for a £26m switch to the Gunners. Having turned down a new contract and just a year remaining on his current deal, Khedira could soon be Arsenal's latest big-name signing.
2/14 Douglas Costa
Costa is one of six Brazilian players refusing to return to Shaktar Donetsk due to the increasing political unrest in Ukraine. Arsene Wenger is reported to be interested in the 23-year-old, with the Gunners reported to be preparing a move for the attacking midfielder.
3/14 Morgan Schneiderlin
Schneiderlin is a transfer target for the Gunners' fierce rivals Tottenham, but Arsenal are reported to have held talks with the 25-year-old Frenchman over a move that would see him snub Spurs. The midfielder would fill the defensive role that Arsenal are currently lacking.
4/14 John Ruddy
The Norwich goalkeeper would be a shock signing for Arsenal, but rumours have linked the England stopper with a move. Arsenal do need another goalkeeper to replace Lukasz Fabianski, but it is worth noting that Ruddy was part of a side that were relegated last season and conceded the third highest number of goals. The arrival of David Ospina has made it even less likely.
5/14 Iker Casillas
Another goalkeeper linked with Arsenal this summer is Real Madrid stopper Casillas. He's not been the favourite at the Bernabeu for a couple of seasons now and his disastrous World Cup has led to speculation he could move on. Again, the arrival of Ospina makes Arsenal's need for him not so desperate, but Wenger may not want to pass up the chance to sign such an experienced keeper.
6/14 Michy Batshuayi
The Standard Liege star has already stated that he expects to leave at the end of the season, preferring to move to either England or Germany and recently admitting that Arsenal are his favourite team. The 20-year-old striker is the top scorer in the Belgian league this season. Batshuayi can also operate on the wing and has been linked with Everton and Napoli. Arsenal are said to be willing to pay his release clause, which is understood to be £6.5m.
7/14 Javi Martinez
Arsenal are believed to be one of a number of clubs looking at Bayern Munich defender/midfielder Martinez should he become available in the summer. He would not come cheaply though, given the Bavarian club activated his €40m release fee to sign him in 2012.
8/14 Julian Draxler
A move during the January transfer window failed to materialise over Draxler's £37m release clause with Arsenal unwilling to pay the hefty fee, according to Schalke's sporting director. The German international was also said to be a target for Bayern Munich in case Toni Kroos failed to sign a new deal with the Bundesliga champions. However, chairman Karl-Heinz Rummenigge has ruled out a summer move for the highly-rated 20-year-old. Arsenal will have to change their stance over the transfer fee to acquire the attacker with several big clubs interested.
With Bacary Sagna confirming he will leave at the end of the season, Arsenal look short in the right-back department. A reported £9m move for Atletico Madrid defender Juanfran was rejected, but the Gunners could return for his services should they up their bid.
10/14 Josip Drmic
Arsenal have been linked with the Nurnberg striker recently after Lothar Matthaus claimed on Sky Germany that the Gunners had already signed the 21-year-old. Wenger is said to be keen to bring in the Swiss striker before the World Cup this summer. Drmic is a wanted man after scoring 16 goals in the Bundesliga this season despite his club battling against relegation. Drmic, who has three-years left on his current deal, is reported to have a release clause of less than £5m. Only Bayern Munich star Mario Mandzukic, Borussia Dortmund's Robert Lewandowski and Hertha Berlin striker Adrian Ramos have scored more league goals than Drmic this season.
11/14 Sebastian Jung
Eintracht Frankfurt defender Jung has been monitored by Arsenal this season. The 23-year-old has been one of their best players this season as the Bundesliga side recovered from a bad start to move clear of the relegation battle once they were eliminated from the Europa League. The German could be available for a fee in the region of £2m but the Gunners may face competition from Wolfsburg.
12/14 Atsuto Uchida
Uchida will travel to Brazil for the World Cup as part of Japan's national team, but the Schalke defender could see himself become the subject of interest from Arsenal as they seek a replacement for Bacary Sagna.
13/14 Salomon Kalou
The former Chelsea forward, currently at Lille in France, is interested in a return to the Premier League. To the dismay of Arsenal fans the Ivory Coast international has been linked once again to a move to the Emirates. Kalou could be available for a fee in the region of £2.5m this summer despite still having two years remaining on his current deal at the Ligue 1 side.
14/14 Juan Quintero
Having impressed at the World Cup, Quintero could be on the move just 12 months after joining Porto. Arsenal have been linked with a £15.8m bid for the Colombia midfielder who impressed at the World Cup.
Sanchez arrives with a reputation as a top quality striker and Jenkinson believes he can help the FA Cup winners target more success.
"He is world class and they are the sort of players you want to see at the club. The squad are buzzing as much as the fans, because if you are going to push on as a club and really compete for things, you need to sign top players," Jenkinson said on http://www.Arsenal.com.
"We have done that with him for sure - it is a fantastic addition.
"He's quick and direct, he can play up front and on the wing, and he is very dynamic. He will definitely fit the Arsenal style of play."
Jenkinson added: "Once you have got one (trophy), you want to experience it again, so fingers crossed we can compete on all fronts this season.
"We have the squad and we are signing players like Sanchez, so I don't see why we can't."
Arsenal are expected to confirm the arrival of France defender Mathieu Debuchy once Newcastle have been able to bring in a replacement, with Holland full-back Daryl Janmaat said to be in talks over a move from Feyenoord to Tyneside.
Atletico Madrid right-back Javi Manquillo is another player on Wenger's radar, along with 19-year-old Southampton right-back Calum Chambers as Arsenal look to cover off the departure of Bacary Sagna, who earlier this summer joined Manchester City on a lucrative free transfer.
Egypt international centre-back Ahmed Fathi has, meanwhile, travelled to London for a trial, the defender's club Al Ahly announced.
Arsenal also need a goalkeeper, and have been linked with Norwich's John Ruddy, the England international.
The Gunners will take a select side to Boreham Wood on Saturday, where Jenkinson and others who were not involved at the World Cup could get a first run-out in a side likely to include goalkeeper Wojciech Szczesny, Mikel Arteta and Wales midfielder Aaron Ramsey.
England midfielder Jack Wilshere, meanwhile, may find himself with some explaining to do when he returns to London after photos were posted online of the 22-year-old appearing to smoke while on holiday in Las Vegas.
In October last year, Wilshere issued an apology after being photographed smoking outside a London nightclub.
Nine months ago, he said: "I made a mistake. Players make mistakes. I am not a smoker, so I think that will be my last one."
Follwing their trip to the United States, Arsenal host the Emirates Cup on August 2/3, which is likely to present a debut for Sanchez.
Arsenal play Premier League champions Manchester City in the Community Shield August 10 before starting the new domestic campaign at home to Crystal Palace.
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