Based upon what I researched and saw last year, and this deal, by the end of 2016 he will have made 51 million dollars playing football.
Considering where he started, seriously, not bad.
As I have said on previous occasions, this is a guy whose services are going to be in demand, primarily as a back up, probably until his late 30s. Even if he is overly mediocre this season, he should be able to earn 3-4 million as a back-up for the next few years...if he wants.