ARLINGTON, Texas - The Texas Rangers want struggling rookie outfielder Michael Choice to work on his game in the minor leagues while they replace yet another pitcher in their injury-riddled rotation. The Rangers demoted Choice to Triple-A Round Rock on Monday with his average at .177 after just six hits in the past month. "He needed to go get himself together," manager Ron Washington said. "We have a lot of faith in him. Its just that you dont need the struggles to become mental." Infielder Donnie Murphy was designated for assignment, allowing Texas to bring up right-handed reliever Roman Mendez and outfielder Jake Smolinski from Round Rock. Both could make their major league debut in the series opener against Houston. Rookie right-hander Nick Martinez was scratched from Tuesdays start because of a pulled muscle in his rib cage, apparently sustained while batting during an interleague series with the New York Mets. He will be replaced by right-hander Phil Irwin, who made his only big league appearance in a start for Pittsburgh last year. Irwin is 4-1 with a 1.74 ERA in six starts for Round Rock. Its likely that Martinez will be placed on the disabled list but only miss two starts because of the All-Star break. "He wants to start tomorrow, but just trying to be smart," general manager Jon Daniels said. "Irwins been throwing the ball well at Triple-A. Looking forward to seeing what hes got." Irwin will be the 12th starter used by Texas, one shy of Colorados major league high. The Rangers acquired Choice in an off-season trade that sent utility outfielder Craig Gentry to Oakland. He was a September call-up for the As after spending the year with Triple-A Sacramento and was good enough in spring training this year to make Texas opening day roster. "Very few guys come up and stick and contribute from Day One," Daniels said. "That was our hope. There were times we thought that might be the case." The 25-year-old Smolinski was a second-round pick by Washington in 2007 and spent his first seven professional seasons in the minor leagues. He spent most of this season with Double-A Frisco, where he had 10 home runs in 72 games, before a recent promotion. The 23-year-old Mendez missed most of 2013 after surgery for a stress fracture in his right elbow. He was 0-1 with a 4.02 ERA in Round Rock. The Rangers have 10 days to trade, release or outright Murphy to the minor leagues. He was hitting .196. Air Max Outlet . -- Sonny Grays fastball wasnt as sharp as it usually is, and the Oakland Athletics young pitcher even had a quirky replay go against him. Cheap Air Max . That was OK with him. He was just happy his team came away with two points. Letestu redirected Jack Johnsons shot from the point with 2:38 left, lifting the Blue Jackets past the Tampa Bay Lightning 3-2 on Monday night. https://www.airmaxchina.us/. The Argentine midfielder made the announcement himself on Twitter on Tuesday and posted a picture of his swollen left foot. His message said he would be out "at least three weeks. Replica Air Max . -- Manchester United thrilled a record crowd with a brilliant opening goal -- and even Cristiano Ronaldos unexpected entrance proved futile for Real Madrid. Fake Air Max . Arsenal had already scored its goals in the third round fixture when the fierce rivalry turned ugly in the final ten minutes as Walcott was being carried off on a stretcher.The Montreal Canadiens announced Friday that forward Brandon Prust will be out of the lineup for the teams remaining regular season games with an upper-body injury. On Tuesday, Prust left the game against the Colorado Avalanche for a few minutes during the first period but returned before the period ended. He scored a goal and added an assist, buut seemed to play in pain.dddddddddddd He practiced with the club on Thursday but only skated for 10 minutes before leaving the ice. The 30-year-old was not in the lineup for Thursdays 3-2 loss to the Columbus Blue Jackets and on Friday, head coach Michel Therrien said he will be re-evaluated before the playoffs begin in mid-April. ' ' '