The Cubs sent Williams to Triple-A Iowa on Sunday following a disappointing beginning to 2006. The right-hander lasted only 1 1-3 innings against the Cardinals on Friday and is 0-2 with a 7.30 ERA this season. He has made two starts and three relief appearances. (Updated 4/23/2006) Analysis: Chicago recalled right-hander Angel Guzman from Iowa to take Williams' spot. Guzman was 1-2 with a 6.61 ERA in three starts.