ANAHEIM, Calif. -- Los Angeles Dodgers ace Clayton Kershaw was placed on the 15-day disabled list Saturday for the first time in his seven-year career because of a swollen muscle in his left upper back. The 26-year-old left-hander, coming off his second Cy Young Award in three years, already had been scratched from his scheduled start in San Diego on Sunday after an MRI revealed the problem. Kershaw was on a throwing progression program and was tossing the ball at different distances Saturday before the teams Freeway Series finale against the Angels when he experienced some discomfort on his 27th throw. "He felt it, and that was the last straw," manager Don Mattingly said. "So at that point, we knew we couldnt have gone any farther and that it was a DL situation. Its a situation -- not just for me, but for everyone -- that weve got to save Clayton from Clayton at this point and be cautious. We cant allow him to try to keep pushing and go forward. If it was up to him, Im sure hed want to go farther. But we cant allow him to do that right now." Kershaw, who signed a $215 million, seven-year contract on Jan. 15, won the Dodgers season opener 3-1 against the Arizona Diamondbacks in Australia last weekend. The three-time All-Star was hoping to get back in the rotation for Fridays home opener against San Francisco, but instead it will be Hyun-Jin Ryu, who also will get the assignment Sunday at San Diego against Andrew Cashner. Ryu started and won the second game of the Australia trip, but tore a toenail while running the bases that day and wasnt sure hed be able to fill in for Kershaw until after his side session Friday. "I think that once Clayton felt something, he knew that he wasnt going to make his start on Friday," Mattingly said. "With his throwing progression, the fact that he stopped right away is all weve asked of him from the beginning: If you feel it at all, youve got to stop. And he stopped right away." Kershaw has made 33 starts, struck out at least 229 batters and logged 227 2/3 innings or more in each of the last three seasons -- including a career-high 236 innings last year, when he finished 16-9 with an NL-best 232 strikeouts and a 1.83 ERA. Kershaw led the majors in ERA for the third straight year, becoming the first pitcher to accomplish that feat since newly elected Hall of Famer Greg Maddux did it from 1993-95. Now that Kershaws run at a fourth straight ERA title has been adjourned for the time being, Mattingly wasnt making any predictions on when he will return to the rotation. The Dodgers have five off days scheduled between now and April 15. "This is not something that we say, OK, we think hell be ready by this date -- and if he doesnt get there, then its like, Oh, Claytons had a setback," Mattingly said. "We should just let it do what its supposed to do and let the medical staff do their work let them tell us what he could do. "And because of all the days off we have and the schedule we have, its really not worth pushing him." Wholesale NHL Jerseys Authentic . -- Billy Andrade hasnt played much competitive golf over the past four years. Wholesale Jerseys . -- Challenged for the first time under Major League Baseballs expanded replay system, umpires got it right. http://www.jerseysnhlfromchina.us/. The best round belonged to Pat Perez. Tiger Woods didnt come close to claiming either Thursday in the Farmers Insurance Open, where the seven-time champion failed to break par in the opening round for first time in his career. Wholesale NHL Jerseys . Various media outlets, including the Detroit Free Press, indicate a deal is close, while USA Today cited an unidentified person directly involved with the negotiations as saying the pact is for two years. Cheap Jerseys . Lack made 20 saves for his third shutout of the season as the Canucks blanked the St. Louis Blues 1-0 in the first post-Olympic game for both teams night.HARRISON, N.J. - Thierry Henry had three assists and the go-ahead goal Saturday night, leading the New York Red Bulls to a 4-1 victory over the Columbus Crew. Henry scored in the 45th minute when he nonchalantly floated the ball just inside the far post. Crew goalkeeper Steve Clark was out of position after blocking Bradley Wright-Phillips header, and then another shot was blocked by a defender. The Red Bulls (5-5-8) opened the scoring in the 17th minute whenn Henry set up an easy tap-in for Wright-Phillips MLS-leading 15th goal of the season.dddddddddddd Columbus (4-6-8) answered in