Bits: Brian Roberts returns with a bang

Baltimore Orioles second baseman Brian Roberts made his season debut Tuesday, hitting three singles and a sacrifice fly in five plate appearances from the leadoff spot. Once upon a time, Roberts was an annual top-5 option at his position. But he has played only 98 big league games over the past two seasons, dealing with concussion woes and other ailments. Let's see a month of health and production before buying in.

Boston Red Sox right-hander Clay Buchholz looks rejuvenated, as he beat the Miami Marlins on Tuesday for his seventh win. Buchholz allowed one run over seven innings, striking out nine and walking only two. In his past four outings, Buchholz, who had a 7.84 ERA in late May, has a 1.45 ERA and better command. He's one of ESPN's most added players, and he should be. He's still available in 27.5 percent of leagues, though.

New York Mets outfielder Jason Bay was hitless in five at-bats Tuesday, and since coming off the disabled list last week, he hasn't reached base via hit or walk in four games, which included 16 at-bats. The Mets will be patient, but it's hard to make a case that Bay is worth relying on, even in NL-only leagues. The other Mets pounded out 14 hits and 11 runs in Tampa Bay on Tuesday.

Arizona Diamondbacks Ian Kennedy is owned in 100 percent of ESPN standard leagues, but the Texas Rangers battered him for 10 hits and six runs in 5 2/3 innings Tuesday. Which Kennedy can you believe? In his prior two outings, he fanned 19 Rockies and Giants, allowing one run in two victories. Keep Kennedy owned, but don't assume he gets his ERA into the low 3s or posts 2011 numbers this year.

Kansas City Royals right-hander Luis Mendoza threw six innings of no-hit baseball against the Milwaukee Brewers on Wednesday, but fantasy owners don't need to consider him a deep-league pickup. Mendoza ultimately allowed one hit, which reliever Aaron Crow turned into a run, but he boasts a 4.89 ERA and 1.65 WHIP, with more walks than strikeouts. He's not Felipe Paulino, the enticing but injured strikeout right-hander he replaced in the rotation.

• Finally, congrats to San Francisco Giants first baseman Brandon Belt for hitting his first home run Tuesday! Belt is hitting only .227, though, showing no signs of emerging as a mixed-league option, even with semiregular playing time. Fantasy owners shouldn't count on Belt for this season.