New England Patriots right guard Tre Jackson underwent a knee scope this past month, according to ESPN's Mike Reiss. Knee injuries are extremely dangerous for players in the trenches and Jackson doesn't have the best history with knee injuries.
Jackson came out of a Pro Style offense at Florida State and offensive line coach Dante Scarnecchia absolutely loves the FSU pipeline. Jackson had failed multiple team's draft physicals due to "chronic knee problems", but the Patriots still took a chance. The knee problems didn't affect Jackson's availability in college as he started 42 games.
However, when watching his tape, it's evident that Jackson doesn't have the footspeed or explosion that you would like to see out of a guard and it's a question of whether his knee injuries have sapped some of his potential.
Jackson suffered a knee injury in the week 7 game against the Miami Dolphins that forced him out of the next three contests. While he played the rest of the season, he was scratched from the Patriots two playoff games due to a knee injury, meaning he played in 13 of the team's 18 games. Clearly his knees have been giving him problems.
Hopefully Jackson can recovery quickly and seamlessly because the summer before the sophomore season is usually when players make it or break it with Bill Belichick's roster.