By FOX Sports Staff
Walcott has had a fine season in front of goal. At the weekend, the England international even came off the bench to net a late winner to fire Arsenal into the fifth round of the FA Cup courtesy of a 3-2 victory at Brighton.
In recent years, Walcott has publicly backed himself to make the successful transition from the wing to lead the line. His good form as a striker this season recently led the club to offer him a new long term deal as a show of good faith in the player's development.
However, Shearer, who has scored well over 150 goals in the Premier League, is not convinced Gunners boss Arsene Wenger will play Walcott up-front on a regular enough basis for the 23-year-old to become a top class forward.
"Theo Walcott signing a new deal is great news for Arsenal," Shearer told The Sun.
"But I'm still not sure it is going to help his chances of becoming a great centre-forward. Walcott wants to play down the middle and his goal return this season has been good, so he is pressing his case.
"He is able to play down the middle and out wide, and that versatility may be to his detriment. If he doesn't specialise, it will be hard for him to be great. Unless you play in a position regularly, you cannot master it."
Shearer added that although Walcott is fulfilling his potential "more than ever before" he doubts the player will become the number one centre-forward at Arsenal.
Walcott, who would have been a free agent at the end of the season, recently signed what is understood to be a three-and-half-year contract worth close to £100,000-a-week.