Manager Ned Yost said that Willingham will serve as the Royals' primary DH until Eric Hosmer (hand) returns to the lineup, Blair Kerkhoff of the Kansas City Star reports. Monday's acquisition of Willingham doesn't address the huge defensive dropoff with Billy Butler at first base instead of Eric Hosmer, but it does at least scrub Raul Ibanez and his sickly .164/.252/.292 season line from the Royals lineup. Willingham made his team debut Tuesday against the Athletics, slotting sixth in the order and collecting a double in his four at-bats.