TORONTO, April 29 (UPI) -- Texas Rangers righthander Chan Ho Park, who is just 1-3 with a 7.16 ERA in six starts this season, on Tuesday was placed on the 15-day disabled list, retroactive to Sunday, with a strained lower back.
It was one of a number of moves made by the Rangers, who purchased the contract of infielder Donnie Sadler from Class AAA Oklahoma of the Pacific Coast League and recalled infielder Mike Lamb from Oklahoma.
The Rangers also announced that catcher Chad Kreuter cleared waivers and has been offered an assignment at Oklahoma. Kreuter has 72 hours to accept or decline the Rangers' offer.
Park made his last start on Sunday, allowing five runs, four hits and five walks in just four innings without getting a decision against the New York Yankees. Park remained in Texas to undergo treatment and will be further evaluated in the coming days.
A major disappointment since signing a five-year, $60 million with Texas in December 2001, Park was 9-8 with a 5.75 ERA in 25 starts last season.
Kreuter made the Rangers as a non-roster invitee in spring training, but was just 2-for-18 in seven games, six starts.
Sadler, 27, batted .303 with a homer and six RBI in 19 games at Oklahoma. He was acquired from the Kansas City Royals midway through last season and batted just .100 in 38 contests for the Rangers. Sadler has a career average of .206 in 322 games with Boston, Cincinnati, Kansas City and the Rangers.
Lamb, also 27, hit .326 with a homer and six RBI in 12 games at Oklahoma. He started the season with the Rangers, going 1-for-7 in five games before being optioned to Oklahoma on April 12.
Lamb has spent his entire major league with the Rangers, batting .286 with 19 homers and 116 RBI in 334 games. Last season, he hit .283 with nine homers and 33 RBI in 115 contests.
