Ravens' Trent Richardson: Will undergo knee surgery

Richardson (knee) will undergo arthroscopic knee surgery and is expected to miss several weeks, Jeff Zrebiec of the Baltimore Sun reports.

The former third overall pick of the 2012 is hoping to resurrect his disappointing career in Baltimore but now may not be ready for the start training camp, which could hurt his chances of making the final 53-man roster. The 25-year-old is competing with Terrance West and Lorenzo Taliaferro for a spot in the Ravens' backfield.