Royals have watched Phil Coke, Alfredo Aceves recently

The Royals have attended workouts of relievers Phil Coke and Alfredo Aceves recently, according to the Kansas City Star.

Kansas City is still in the market to add depth at the back of the pen. Coke, 32, posted a 3.88 ERA over 58 innings with Detroit last year. Aceves put up a 6.52 ERA in 19 1/3 innings with the Yankees.