#3 Mathieu Flamini
The 32-year old recently ran out of contract at Arsenal in 2016 and has been a free agent, since.
The French midfielder recently found a biotech company, which produces levulinic acid on a commercial scale, becoming the world's leader in the manufacture of that substance. Flamini is one of the richest footballers currently, thanks to the big bucks from this company.
Flamini remains keen on continuing his football career and is available for a new club. He was a good backup player at Arsenal in his second spell with the club when he had to fill up for Santi Cazorla and Francis Coquelin, following their injuries.
He made 24 appearances last season and chipped in with a two goals.
The Frenchman has been attracting a lot of interest from Serie A clubs - Roma and Torino. Flamini still has a lot to offer, at least as a squad player, and should be a good signing.