MLB notebook: Nats' Harper may have to rest sore knee
• Nationals outfielder Bryce Harper might have to sit a few days to rest a sore knee still feeling the effects of a collision with the Dodger Stadium wall, and Ross Detwiler will miss another start and go on the disabled list because of a strained oblique muscle. Harper was gimpy for much of Sunday's 6-1 win over the Philadelphia Phillies. He aggravated the knee twice with head-first slides in the first inning, then fouled a pitch off the knee in the third. He was removed for a pinch runner in the seventh. With Detwiler on the DL, left-hander Xavier Cedeno will be recalled from Triple-A Syracuse.
• The Angels activated right-hander Kelvin Jepsen from the 15-day disabled list and designated right-hander Billy Buckner for assignment a day after he earned his first big league victory since 2009. Buckner pitched five innings of two-hit ball in a 7-0 win over the Royals on Saturday. He hadn't pitched in the majors since 2010.
• Arizona right-hander Ian Kennedy will miss his next start after cutting his right index finger while doing the dishes this week. He will be replaced by left-hander Tyler Skaggs.
• The Rockies acquired minor league infielder Drew Garcia in a trade with the White Sox. The 27-year-old Garcia hit .222 with 12 RBIs in 24 games for Triple-A Charlotte this season. The White Sox receive a player to be named in Sunday's deal.
• The Yankees added left-hander David Huff to the roster and designated outfielder Ben Francisco for assignment. Manager Joe Girardi said Huff gives the team a second lefty in the bullpen and a reliever that can pitch multiple innings.