Matthews injured his knee in the first half of the Rams' season-opening victory against American on Friday. Tests on Saturday showed he suffered a season-ending injury, the exact nature of which was not revealed.
"The injury I sustained on Friday night vs. American will unfortunately keep me from playing the rest of this season," Matthews said in a statement. "While the news has been a lot to process in such a short period of time, I know that it is a temporary setback and I will be back stronger and hungrier than ever before. Whether it is a rehab or physical therapy session, I will fight to get better everyday. This is a new challenge and I am up for it."
The 6-foot-5 Matthews averaged 16.9 points and 4.6 rebounds in 2014-15. He was expected to be the team's go-to guy again this season.
Matthews' loss is a significant blow to a team expected to contend for the A-10 title this season. Dan Hurley, in his fourth season at the helm, took the Rams to the NIT last season after winning 23 games.