The Blue Jays have designated pitcher Sam Dyson for assignment to make way for Mark DeRosa, and Dyson might warrant consideration for a waiver claim, in part because his background is so unusual for a player who's just been DFAed.

Dyson was drafted in the fourth round in 2010, but didn't make his pro debut until 2012 because he had Tommy John surgery almost immediately after signing. He mostly pitched in Classes A+ and AA in 2012, putting up bizarre stat lines in which he struck out almost no one but still managed to keep runs off the board, thanks in part to an excellent ground ball rate. In July, the Jays for some reason promoted him, which is why he was on their 40-man roster. He pitched in two games and got rocked, and that was it. He got a little more work in the Arizona Fall League, where he allowed six runs in 7.2 innings but did strike out eight batters.