Former Arsenal left-back Nigel Winterburn claims Sol Campbell's return to the club has been forced on manager Arsene Wenger because of the lack of defensive cover.
Winterburn also suggests the former England international will struggle to make an impact at the Emirates Stadium. Campbell is set to complete a deal to keep him with Arsenal until the end of the season.
The defender last played for the club in the Champions League final defeat by Barcelona in 2006.
The 35-year-old is hoping the move will resurrect his career having joined League Two side Notts County on a five-year contract in August, only to walk out a couple of days after making his debut against Morecambe.
But Winterburn suggests the defender may struggle to get a game for Arsenal and there is little, if any, chance of an England recall under Fabio Capello.
Winterburn said: "I don't expect Sol to play a lot of games. Arsene doesn't bring back people for sentiment.
"He doesn't usually let players back in. He has obviously been monitoring Sol and what his fitness is like.
"They have little cover for the first-choice centre-backs in William Gallas and Thomas Vermaelen. There are no young ones coming through. Philippe Senderos wants to go and that just leaves Mikael Silvestre.
"When you are challenging on three fronts you need more than one player to act as cover."