Arsenal would “be able to win the Premier League” with a “happy” Alexis Sanchez, according to Lauren.
The Gunners are currently sixth in the Premier League table, level on points with both Liverpool and Burnley, and one behind fourth-placed Tottenham.
Sanchez has been uncharacteristically quiet for much of the season, with his north London derby goal at the weekend being only his second in the Premier League this season, as his contract negotiations rumble on.
Lauren, who spent six years at Arsenal from 2000, feels the Chilean could be the key to a title push.
“At least we [have to] keep Alexis Sanchez happy,” Lauren told Omnisport.
“I don’t think he will be the same player as last year, scoring a lot of goals, because if a player said to you at the beginning or the end the season, he wants to leave…
“Either you maintain, keeping him happy, or find issues that make him happy and able to perform the same way as last year, otherwise it will be difficult to maintain the same level.
“The people that are working with Alexis on a daily basis at the club must know about it, but he is a player that, definitely, to be able to win the Premier League, you need to have him in the squad. But you have to make him happy.”