Wycombe defender Adam Hinshelwood has been forced to retire from football due to serious knee problems.
The 26-year-old was advised to call time on his playing career following exploratory surgery on his right knee on Wednesday.
Hinshelwood told Wycombe's official website: "I was hoping it was going to be a cartilage problem and I would be able to recover in time to run out on the first day of the season, but it was much more serious than that.
"The doctors recommended that I never play football at any level ever again. They said if I played in the future there would be a chance my knee could crumble and I wouldn't be able to walk again. It's really hard to take and I will miss the game, but I've got to look at the bigger picture."
Wanderers boss Gary Waddock added: "Everyone at the club is gutted that Hinsh has had to retire. He was excellent for the club both on and off the pitch and he will be missed. I signed him when I was at Aldershot and again here because - when he was fit - he was one of the best centre-backs around."
Hinshelwood joined Wycombe from Aldershot in January, scoring once in 13 appearances and taking the captain's armband on occasions. He previously played for Brighton and received an England Under-21s call-up in October 2004, but he ruptured his anterior crucial ligament the following year to set in motion a succession of knee problems.