Boone is unhappy with his current deal and is hoping to secure a new contract that would pay him a more competitive salary in line with what starting guards are making around the NFL.
Barrows points out that Boone’s average salary would make him the 43rd highest paid guard in the league.
San Francisco recently freed up some extra cap space, but they have shown a willingness to negotiate with players who are in camp and not holding out, which is something that could work against Boone.
Boone, 27, is entering the fourth year of a five-year deal and is slated to make $2 million for the 2014 season. He currently counts $2.6 million against the cap next season.
Boone moved from tackle to guard two seasons ago and it paid off in a big way for the 49ers, as he graded out as the No. 3 guard in the 2012 season according to Pro Football Focus. However, he regressed some last year when he was rated as the No. 40 guard out of 81 qualifying players.