ARLINGTON -- Rangers outfielder Julio Borbon received the night off Friday against the Angels.

Josh Hamilton shifted over to center field. Reserve outfielder David Murphy took Hamilton's place in left.

"Just keeping Murphy engaged. You'll see Murphy play a lot more, that's all there is to it," manager Ron Washington said. "We have to keep Murphy engaged. We have to win with everybody. We're at the point in the year where everybody's got to get a chance to play."

Unfortunately for Murphy, most of the time he's been in the lineup, it has come with a left-handed pitcher on the mound. Friday was no different, as he was tasked with facing off against left-hander Joe Saunders.

"It's too bad he's got to get lefties, but we're keeping him engaged," Washington said.

Prior to Friday's game, Murphy was hitting .274 with a home run and seven RBIs in 73 at-bats against left-handers this season.

"Most of the time, when I try to keep him engaged, he's going to have to try and face some left-handers," Washington said. "Murph doesn't care. He just wants to play."

Harden to make third rehab start Monday

ARLINGTON -- The Rangers have reached a decision on pitcher Rich Harden.

Harden will once again draw a starting assignment with Triple-A Oklahoma City, as he'll pitch Monday against Memphis.

Harden has already made two rehab starts with the RedHawks since going on the disabled list with a gluteal strain.

Harden was in Arlington on Friday throwing in the bullpen prior to the Rangers' game against the Angels, but manager Ron Washington said it was only to give pitching coach Mike Maddux a chance to look at him.

"Throwing the ball well. The results don't look too good," Washington said of Harden's two starts in Triple-A. "Mike and [bullpen coach Andy] Hawkins had a chance to throw a bullpen with him today. ... I haven't had a chance to find out how they feel."

Harden's last start for the RedHawks didn't provide him with a great stat line, but he was pleased with his performance nonetheless. He gave up six runs on seven hits in just five innings of work, but struck out nine. Of his five innings, three of them were scoreless.

"Last one I felt great," Harden said. "I threw 88 pitches with four balls up in the zone. They were just aggressive, hacking at anything. I'm good."

Treanor suffers sprained right knee

ARLINGTON -- Rangers catcher Matt Treanor left Friday's game after suffering a sprained right knee in the seventh inning of the club's 1-0 win over the Angels.

Treanor was trying to beat out a soft ground ball to second before tripping over the foot of Angels first baseman Kevin Frandsen.

"I think I was sniffing a hit. I got to the base and I guess I hit his foot, I wasn't sure," Treanor said. "I tried to catch myself and felt something weird in there."

He immediately fell to the ground, where the Rangers' medical staff attended to him. He walked off under his own power but was replaced in the game by primary catcher Bengie Molina.

"I wanted to get up right away and they wanted me to stay down," Treanor said. "You don't want to get up and do something stupid."

He'll have an MRI on Saturday and be evaluated further at that time.

"I think after tomorrow, we'll have a better idea of where I'm at and I'll have a better idea of what my limitations will be," Treanor said.

Fridays have been rainy for Rangers

ARLINGTON -- Heading into Friday's game against the Angels, each of the past three Rangers games on Friday night had experienced rain delays.

Two came at Rangers Ballpark in Arlington, delaying each game's start time by a combined four hours and 54 minutes. Last Friday at Boston, the game was delayed an hour after rain began falling midway through the game.

And before the Rangers' game this time around, the tarp was pulled over as unpredicted rain showers passed through Arlington, but the contest started on time.

"What the heck?" Bengie Molina asked. "Freaky Friday, man. Freaky Friday. That's all I got to say."

Molina has been a part of all three delays since being acquired from the Giants, and the delays have caught him by surprise more than most.

"The first thing I heard when I came over here, they told me it was very dry," Molina said. "That's all they said to me. It was very dry and it never rained. The first day I came here we started at 9:30 [p.m. CT]."

It's been equally surprising to manager Ron Washington.

"I've never seen this much rain since I've been here," Washington said. "It's raining almost every day around here."

Elvis Andrus mentioned how the players like to have fun in the clubhouse, but wouldn't divulge details of some of the things that go on.

"Me and Ian [Kinsler] always try to do something fun. I can't say, that's our secret," Andrus laughed. "But nothing that crazy. We just enjoy our time. We spend more time here than at our house. It's like our house for everybody."

Worth noting

The Rangers' six-game lead entering Friday night was their largest division lead since they won the American League West by eight games in 1999. ... With his first-inning homer Thursday night against the Angels, Michael Young became just the ninth player in Rangers history to reach 150 home runs. ... Thursday's win also snapped a four-game losing streak at the Ballpark in Arlington, as the Rangers were swept in a four-game series against the Orioles to end the first half of the season.