After three rehab games in High-A Frederick, Machado’s Orioles season debut was pushed back twice because of rain. He said he continued to prepare during the two days, and he looked forward to ending the wait.

“Just because it was raining out there doesn’t mean you couldn’t be working,” Machado said. “I’ve got one or two butterflies in there, but it’s just part of the game. It’s just another game out there, but it’s going to be my first one. I’m excited for it.”

Lombardozzi optioned to Triple-A

To make room for Machado on the 25-man roster, the club optioned infielder Steve Lombardozzi to Triple-A Norfolk.

Lombardozzi, who was acquired in March in a trade that sent infielder Alex Gonzalez to the Detroit Tigers, batted .292 with two RBIs and six runs scored in 19 games. He didn’t walk at all and struck out 13 times in 72 at-bats while playing solid defense.

“I got to tell you, in the past some years, we have sent guys out, and it’s pretty cut and dried,” Showalter said. “But the last two or three [moves], I hope that’s an indication of better depth.”

Ultimately, the Orioles chose to keep Jemile Weeks, who made his Orioles debut April 26, instead of Lombardozzi. Showalter said he expects to see Lombardozzi again this season.

Around the horn

Outfielder Nolan Reimold (neck) took batting practice Wednesday in Sarasota, Fla.. He is on the 60-day disabled list. … Infielder Michael Almanzar (knee) had a platelet-rich plasma injection in his left knee this week to help speed his recovery, Showalter said. He has been on the 15-day disabled list since March. … Left-hander Johan Santana (shoulder) is set to throw Saturday in an extended spring training game for the first time. His simulated game Monday went well, and he peaked at 86 to 87 mph with his fastball, Showalter said. He’ll probably throw a side session this Monday, with Showalter looking on in Sarasota. Tthe Orioles have a day off and will be in St. Petersburg, Fla. … Outfielder Francisco Peguero (right wrist) is doing baseball activities and could be ready to progress to games soon. … The Orioles officially announced the makeup of the April 15 rainout against the Tampa Bay Rays. It will be at 1:05 p.m. on June 27 as part of a separate admission, day-night doubleheader at Camden Yards. … Outfielder Henry Urrutia was placed on the disabled list at Triple-A Norfolk, retroactive to April 29, with an abdominal strain.