Arsenal need more players with the mentality of Alexis Sanchez throughout the team to be successful, according to Sol Campbell.
Chile forward Sanchez's future at the Emirates Stadium is in doubt as his current contract expires in the summer of 2018.
Chelsea are among those linked with making a move this summer for Sanchez, who Campbell believes could have played alongside him in the Arsenal team which completed the 2003-04 season undefeated.
Former England defender Campbell told ESPN FC: "(Arsenal need) more Sanchez-type of mentality players, from defenders to up front.
"I think that for me they need more players like that on the pitch.
"Sanchez would easily play in our (Invincibles) side.
"(Sanchez) has everything. If you want to win things, you've got to have more guys like that."
Arsenal are sixth in the Premier League, 19 points behind leaders Chelsea, ahead of this weekend's resumption following the international break.
Campbell crossed the North London divide when moving from Tottenham to Arsenal, while more recently Petr Cech swapped Chelsea for Arsenal.
The prospect of a Sanchez move to Stamford Bridge could be more likely if Real Madrid's perennial interest in Eden Hazard materialises.