Benfica are reportedly the favourites to sign former Valencia attacker Jonas this summer.
The Brazilian is currently available on a free transfer after leaving Los Che last month and as a result, can be signed outside of the transfer window.
A number of European clubs have been linked with a move, but according to A Bola, Benfica currently lead the race for the 30-year-old.
Jonas, who is without a club for the first time in his professional career, scored 10 times in 40 games for Valencia last season.
