Danny Welbeck joins Arsenal: Rio Ferdinand says the striker will 'flourish and explode' at Arsenal
The England international signed on deadline day for £16m
Ferdinand, who played alongside Welbeck for United, says Arsene Wenger's £16m deadline day purchase is a "top signing".
The 23-year-old, who is currently on international duty with England, and trained with the centre-back Ferdinand for six seasons. Ferdinand himself left United this summer, signing for Queens Park Rangers on a free transfer.
"Welbeck is a top signing for Arsenal," Ferdinand said. "If he gets that trust to be No 1 striker at AFC he will flourish and explode."
Read more: Welbeck part of growing British core at Arsenal
Welbeck move has 'broken' United's identity - Phelan
Welbeck was United through-and-through
Welbeck scored 29 goals in 142 appearances in all competitions for United, and won the Premier League title with the club in 2013.
Latest in Sport
Manny Pacquiao secures $12.5m mansion by giving seller four tickets to 2 May fight with Floyd Mayweather
Dan Hardy column: Is the hype around UFC sensation Conor McGregor justified?
Malaysia Grand Prix 2015: Nico Rosberg refuses to back down on blocking claims after Lewis Hamilton's lightning start to season
WWE WrestleMania 31: What time does it start? Full match card and preview ahead of event
Cricket World Cup 2015: Has the success of the tournament spelt the end for Test matches?
- 2 The West has it totally wrong on Lee Kuan Yew
- 3 Watch: Man takes selfie every mile of 2,600 mile hike, creates amazing timelapse video
- 4 The day I starred in Only Fools and Horses
- 5 Scientists have discovered a simple way to cook rice that dramatically cuts the calories
Ukip supporters are 55 or older, white and socially conservative, finds British Social Attitudes Report
JK Rowling responds to fan tweeting she 'can't see' Dumbledore being gay
Jeremy Clarkson sacked live: Alan Yentob 'wouldn't rule out' ex Top Gear host's BBC return
Revealed: Putin's army of pro-Kremlin bloggers
Germanwings plane crash: Co-pilot Andreas Lubitz wanted to 'do something people would remember him for'
The West has it totally wrong on Lee Kuan Yew