Wojciech Szczesny can regain his place as Arsenal number one if he dedicates himself completely to the task, according to former double-winning goalkeeper Bob Wilson.
The Poland international is expected to feature in the FA Cup quarter-final at Manchester United on Monday night, provided he recovers from the virus which stopped him from being on the bench for the midweek Barclays Premier League win at QPR.
Szczesny, 24, has not started a league game since the 2-0 defeat at Southampton on New Year's Day, where he was culpable for the goals and afterwards was also caught smoking in the showers. That indiscretion resulted in a fine from the club.
Despite Colombian David Ospina making the most of his opportunities in recent weeks, Wilson, part of the Gunners' 1971 league and FA Cup-winning side, still believes 6ft 5in Szczesny has what it takes to cement a regular place between the posts once more.
The players Arsenal nearly signed
The players Arsenal nearly signed
1/7 Harry Kane
Arsenal supporting Harry Kane was on the books at Arsenal but aged eight was allowed to leave, making his breakthrough season at local rivals Tottenham all the more harder to take.
2/7 Zlatan Ibrahimovic
A fee had been agreed for the then 19-year-old but then Wenger requested that the Swede play in a trial match. The mercurial striker replied he didn't 'do auditions' and went on to win league titles with every club he ever played at.
3/7 Didier Drogba
Now a Chelsea legend, Wenger revealed that he could have signed the Ivorian for just £100,000 when the striker was playing for Le Mans. Drogba was watched many times before eventually being overlooked.
4/7 Angel Di Maria
Wenger had the chance to sign Angel Di Maria for absolutely nothing when the Argentinian was a 17-year-old. But work permit issues got in the way and he ended up at Manchester United for £59.7, via Benfica and Real Madrid.
5/7 Yaya Toure
With his brother Kolo at the club at the time, the Ivorian featured for Arsenal in a friendly against Barnet. But work permit issues got in the way and the winner of multiple African player of the year awards eventually ended up at Barcelona and then Manchester City.
6/7 Cristiano Ronaldo
The three-time winner of the Ballon d'Or was apparently shown around Arsenal's training camp at London Colney and even given a shirt with his name on the back. But Manchester United stole in after seeing Ronaldo rip them apart during a friendly with Sporting Lisbon.
7/7 Petr Cech
Arguably the most consistent goalkeeper ever to play in the Premier League was heavily scouted by Arsenal but when the possibility of signing him from Sparta Prague was raised work permit issues got in the way. Cech also claims that Arsenal's chief scout at the time had reservations about his ability.
"From the time Wojciech got into the Arsenal first team there were a lot who asked if he was good enough and I thought this boy has the potential to really be a solid, outstanding goalkeeper, I still believe that because he is - for his position - still relatively young," Wilson, 73, told Press Association Sport.
"All I would a say to him is 'look, Arsenal is one of the greatest football clubs. If you go from here I am not sure you are ever going to get a club as good as this. At your age now you need to dedicate yourself to being the best you can be, to the exclusion of a lot of other things in your life'."
Wilson recalled: "I was a very late starter, but once I was in the Arsenal side, my family almost came second to my ambition.
"I devoted every moment to regular training and then when the boys went in for their bath, I stayed out (on the field).
"I wanted to make sure I never ever left the game saying I could have been better, so my message to Wojciech would be 'come on, prove how good you can be'."
Gunners boss Arsene Wenger is confident Szczesny, who has played in Arsenal's last two FA Cup ties, will be sharp if selected again.
"Wojciech is used to playing in big games and I think he will take that as a big challenge to show his quality," the Gunners boss said.
"He works very hard in training, so I don't think that will be a problem."
Arsenal head to Old Trafford in search for a first win there since September 2006, but on the back of good league form.
Wenger said: "We are the holders of the FA Cup, this competition is important to us and we want to go there to produce a result."