The Chicago Cubs designated relief pitcher Henry Rodriguez for assignment and added outfielder Cole Gillespie to the roster before Sunday night’s game against the Cardinals at Wrigley Field. Gillespie, 29, was claimed off waivers Saturday from the Giants. He was originally selected in the third round of the 2006 draft by the Brewers and made his big league debut with the Diamondbacks in 2010, appearing in 45 games. Gillespie, who will wear No. 2, was a teammate of Cubs second baseman Darwin Barney at Oregon State where they helped lead the Beavers to the 2006 national championship. “In 2005 we made it to Omaha and in 2006 we were able to win the whole thing,” Gillespie said. “We shared a lot of great memories together and it is great fun to be reunited again at the big league level.” Gillespie has spent most of the last three seasons in Triple-A in the Diamondbacks and Giants organizations. He hit .308 (136-for-441) with 35 doubles, four triples, 13 home runs, 66 RBI, 85 runs scored and an .884 OPS in 126 games with Arizona’s Triple-A Reno affiliate last season. Rodriguez, acquired by the Cubs from Washington on June 11, has combined to go 0-1 with a 4.09 ERA in 22 relief appearances with the Nationals and Cubs this season.