Angels center fielder Peter Bourjos goes on DL with injured hamstring

Peter Bourjos put his injured right hamstring to the test by doing agility drills, running some short sprints and one long sprint of about 100 yards at close to full speed.

Grades were issued Friday, and the speedy center fielder did not pass. Bourjos was placed on the 15-day disabled list, retroactive to July 8, and the Angels recalled utility player Alexi Amarista from triple-A Salt Lake.

“It didn’t really respond well,” said Bourjos, who hit .417 (15 for 36) in 11 games to raise his average to .272 before suffering a slight strain on an eighth-inning double against Seattle on July 7.

“It’s frustrating. It felt really good [Thursday] morning. It stinks to sit here and watch, but that’s where I’m at right now.”

Friday’s move means 19-year-old Mike Trout, who was called up from double-A Arkansas to replace Bourjos, will remain in the big leagues a little longer than expected. Bourjos is eligible to be activated July 23.

“He’s making progress, but not enough to where we project him playing this weekend or the beginning of next week,” Manager Mike Scioscia said. “The medical staff has drummed into our heads that hamstrings are different animals.

“If you’re going to determine when a guy is going to be ready, it’s better to [bring him back] three days later rather than three days sooner. Peter’s speed is critical to what he does and to the team. We want him to get strong for next Saturday.”

Let’s play two

Saturday’s doubleheader is the Angels’ first scheduled doubleheader since Sept. 9, 1978, when Kansas City played twice in Anaheim, and the first in the major leagues since Aug. 2, 2003, when San Diego played two at Philadelphia.

With Friday night’s game and Sunday’s day game, the Angels and A’s will play four games in about 44 hours.

“That’s a lot of baseball in three days, but guys are well-rested, our pitching is lined up, and we have an off day Monday,” Scioscia said. “It’s nothing extraordinary that these guys can’t handle.”

With a high of 72 degrees and a 10% chance of rain forecast for Saturday, players won’t have to deal with extreme conditions.

“It might be tough on my body for a day, but I’ve played in 15-inning games,” right fielder Torii Hunter, 35, said. “It’s no big deal.”

As baseball looks to condense the 162-game regular season, teams will probably schedule more doubleheaders.

Several players said they don’t mind them as long as they’re traditional doubleheaders, with the second game starting 30 minutes after the first, and not a day-night doubleheaders, with games at 1 p.m. and 7 p.m.

“Split doubleheaders,” said Scioscia, “are the scourge of scheduling.”

Short hops

Left fielder Vernon Wells was scratched from Friday night’s game because of a stomach ailment. Bobby Abreu moved from designated hitter to left field, and Russell Branyan was inserted at DH.... Maicer Izturis, slowed by a left forearm injury, did not start Friday night, but Scioscia said the infielder will play Saturday.... Reliever Fernando Rodney (upper-back strain) will begin a minor league rehabilitation assignment Saturday with Salt Lake, which plays at San Jose.

mike.digiovanna@latimes.com