In the wake of Joe Flacco's back injury, the Ravens have been interested in adding another quarterback to the roster. According to Ian Rapoport of NFL Network, first reported by NFL Draft Diamonds, the team has brought in a fresh arm.
Olson played for Kansas City Phantoms of the Champions Indoor Football League (CIF). It is an arena league of lesser level than the Arena Footballs League (AFL)
In college, Olson played at Stanford for four years before transferring to Clemson as a graduate transfer.
According to Rapoport, Jim Harbaugh, who was the head coach at Stanford while Olson was there, gave a good review of his former quarterback to Ravens head coach John Harbaugh.
Olson had very limited college experience, his only game action as a Cardinal coming against Washington State in 2013. At Clemson, Olson completed one of three passes for 15 yards.
With just two healthy quarterbacks currently on the roster, Olson is nothing more than a signing to take reps during camp, and fight for a practice squad spot. It is unknown whether this will put an end to the Ravens interest in Colin Kaepernick, but it does show that the Ravens have confidence in Ryan Mallett as the back up. The Ravens did re-sign him for a reason.