It has been a weird 24 hours for Josh Kline. On Tuesday, he was reportedly traded to the Eagles, only to have Philadelphia shop him immediately after acquiring him. Then, he was removed from the trade, but not for a physical issue. This morning, the Patriots released him, according to Ian Rapoport of NFL.com (on Twitter). 
Kline, 26, joined the Patriots in 2013 as an undrafted free agent out of Kent State. After getting four starts in his first two seasons, Kline became a full-time starter last year. In November, the Pats extended the guard through the 2017 season. The deal carried a base value of $3.3MM with a ceiling of $4.9MM. For one reason or another, neither the Patriots nor the Eagles were interested in paying that out.
Last year, the advanced metrics at Pro Football Focus ranked Kline No. 37 among all guards in the NFL out of 81 qualified players. PFF gave Kline a better grade for his run blocking ability (78.5) than his pass blocking (67.9), resulting in a 73.6 overall score. In 2015, PFF considered him roughly even in both areas.
Photo courtesy of USA Today Sports Images.