Nolan Ryan's No. 30 will become the third retired number in Angel history in a ceremony on June 16, when the Texas Ranger is to be inducted into the Angel Hall of Fame at Anaheim Stadium.
The only others are Rod Carew's No. 29 and owner Gene Autry's No. 26, a number chosen to be symbolic of the 26th man.
Ryan, 45, will be the fifth player inducted into the team's Hall of Fame, joining Bobby Grich, Jim Fregosi, Don Baylor and Carew.
Ryan pitched four of his record seven no-hitters while playing for the Angels from 1972-79.
Angel outfielder Chad Curtis, who has been wearing No. 30, switched to No. 17 for Friday's game against Toronto.
"I thought a lot about who wore this number when I started spring training," Curtis said. "I've been partial to No. 17, though I felt fortunate to wear No. 30 for a while. I think now it will look better on the facade in right field."
Don Robinson, whose scheduled workout was delayed twice because of a stiff back, pitched off the mound Friday and said he threw well.
"The hip didn't bother me, the back didn't bother me," he said.
Robinson, who has been troubled by his arthritic left hip and tightness in his back, is eligible to come off the disabled list, but the Angels plan to see how his back responds today and Sunday before making a decision.
"All I can do is just get healthy," Robinson said.
Bert Blyleven, attempting to come back after two shoulder surgeries, had a solid outing in his first triple-A appearance Friday. He gave up one earned run and five hits over six innings in Edmonton's 5-2 victory at Calgary. He struck out five and walked two. Blyleven, 41, opened the season at double-A Midland and was promoted to Edmonton this week. . . . Second baseman Bobby Rose sat out a third consecutive game in order to get additional time with hitting instructor Rod Carew. Rose, batting .215, has four hits in his last 20 at-bats.