The Ghana international would welcome the winger with open arms if they were to be reunited at the Old Lady next season
The Chile international has struggled for consistency since joining the Catalans from Udinese in the summer of 2011, and was heavily linked with a move to Juve in the winter transfer window.
The Bianconeri are allegedly still interested in the 24-year-old, and Asamoah would welcome his former Zebrette team-mate with open arms at the reigning Serie A champions.
"Alexis is a player with great qualities. He is incredibly quick," Asamoah was quoted as saying by Corriere dello Sport.
"He could give us a helping hand if he were to make the move to Juventus."
Sanchez has a contract with Barcelona until June 2016.