Player Notes

Jason Frasor has tallied a 3.65 ERA through 17 appearances in his first season for the Rangers.
Advice: Signed to a one-year, $1.5 million contract in early January, Frasor has improved upon 2012's disappointing campaign for the Blue Jays, where he posted a rough 4.12 ERA and 1.47 WHIP across 43-plus innings of relief. Frasor owns a 13/5 K/BB ratio and 1.29 WHIP through 12 1/3 frames.

Chad Durbin sports a hideous 10.38 ERA in May.
Advice: His season ERA of 8.10 ain't much better. Durbin sat at a decent 3.52 ERA on April 29. Since that time, he's been a human pinata, allowing 10 runs on 10 hits and four homers over just 3 2/3 innings. Durbin, 35, registered a solid 3.10 ERA in 61 innings last season for the Braves. Philadelphia may be wondering if they purchased a $1.1 million mole at this point.

Brandon Lyon is enjoying his first season in Queens, recording a 3.06 ERA through 21 appearances.
Advice: New York guaranteed Lyon less than a million bucks as a free agent this winter, an investment that is paying off nicely. The veteran reliever has five holds, a 1.08 WHIP and 16/4 K/BB ratio in 17 2/3 innings. Lyon registered a solid 3.10 ERA, 1.25 WHIP and 63/20 K/BB ratio across 61 innings last season between the Astros and Blue Jays.

Jeremy Horst has not carried over his success from 2012, posting a 5.09 ERA and 1.58 WHIP over 17 2/3 innings.
Advice: Luckily for him, Philly's bullpen depth is poor. A lack of attractive alternative options will only save Horst's job for so long, however, if he keeps getting lit up at this rate. Horst posted a 1.74 ERA over 44 games in limited time the last two seasons, which is probably why the Phillies have given him as much rope as they have.

Scott Diamond surrendered three runs on nine hits and a walk over 5 2/3 frames in a no-decision loss Thursday to the Tigers.
Advice: He struck out five. Diamond allowed a two-run homer to Miguel Cabrera and spent the rest of the evening dancing out of self-inflicted danger. Diamond was 3-2 with a 3.03 on May 7. Over his last three starts, he's allowed 15 earned runs and five homers over 15 2/3 innings. Diamond's control is almost as worrisome as the baseballs he's watched fly into the stands. Usually a southpaw with plus command, Diamond has walked seven and struck out just six in his last three outings.

Ronald Belisario sits on a 3.22 ERA through 23 appearances.
Advice: Belisario put up a nice 2.54 ERA while striking out nearly a batter per inning last season. He's punched out one less batter per nine innings in 2013 and his control hasn't been quite as sharp. Currently, Belisario is allowing the highest batting average, on-base percentage and slugging percentage of his career, but he has been slightly unlucky with balls in play,

Edwar Cabrera (left shoulder impingement) threw a 45-pitch bullpen session last month.
Advice: We've read nothing further regarding Cabrera, which probably means he isn't close to a rehab assignment. The 25-year-old lefty was placed on the 60-day disabled list in February. He's eligible for activation, but not healthy enough to pitch. Cabrera ranked as Colorado's ninth best prospect by MLB.com this offseason.

Nate Jones has been blasted this season to the tune of a 6.33 ERA over 21 1/3 innings.
Advice: Jones won the final spot in the White Sox bullpen in 2012 and rewarded Chicago's brain trust with a 2.39 ERA over 71 2/3 frames. He's running out of time to turn things around one year later and a demotion could be in the offing. An interesting anomaly, for all you stat heads: Jones was 8-0 last season. This year? He's 0-4.

Antonio Bastardo has a 2.35 ERA through 19 appearances despite a mediocre 1.43 WHIP.
Advice: Bastardo has also blown two saves. He's punching out 4.6 less hitters per nine innings then he did last year, when he had a poor 4.33 ERA, and he's allowing more hits and walks. If Bastardo doesn't become stingier with base runners, his peripherals will begin to wreak havoc on his ERA.

Josh Tomlin (Tommy John surgery) could return near the end of the season.
Advice: Tomlin went under the knife last August. At this point in his rehab, it's hard to predict if a 2013 return is in the cards. Tomlin has said he'd rather be 100 percent for 2014 rather than making a premature late-season return this year. The right-hander posted a 6.36 ERA in 16 starts and five relief appearances with the Indians last season.
More: SportsXchange

Aaron Loup has been a bright spot in Toronto's bullpen, tallying a 2.55 ERA and 1.18 WHIP over 24 2/3 innings.
Advice: Over the past two years, he's given the Jays a 2.60 ERA and 1.03 WHIP over 55 1/3 innings. Toronto doesn't trust him much in high-leverage situations, however, which is why he only has four holds in 2013 and 10 in his career.

Rick Porcello was chased by the Twins for five runs on 10 hits over five innings Thursday, but escaped with a no-decision when Detroit mounted a late comeback.
Advice: He struck out two and walked one. Porcello was 0-2 with an 11.08 ERA on April 20 before a solid four-game stretch lowered his earned run average to 5.92. It's back up to 6.28, courtesy of the toothless Minnesota offense. Gamble on Porcello at your own risk Tuesday, when he has a date against the Pirates.

Joaquin Arias has been one of baseball's worst hitters, slashing .205/.262/.205 through 43 plate appearances.
Advice: The utility infielder, making $925,000 this season, batted .270/.304/.389 with a .693 OPS in 344 plate appearances last season. He can be ignored in NL-only formats.

Martin Maldonado has regressed at the plate in 2013, slashing .184/.253/.303 over 83 plate appearances.
Advice: In his first real exposure to Major League pitching, Maldonado batted .266/.321/.408 in 256 plate appearances last season. Perhaps he's toting his struggles onto the field with his catcher's gear. Maldonado has been a run worse than average defensively this year, according to Baseball Reference.

Tyler Clippard hasn't allowed a run in May.
Advice: Clippard is seventh in the National League with eight holds. He's collected three wins in 2013 and posted a 2.50 ERA, 1.00 WHIP and 19/11 K/BB ratio over 19 appearances. The Yankee Clippard had a 6.33 ERA over six starts in the Bronx as a rookie in 2007. In the six years since, he owns a sparkling 2.83 ERA and 1.09 WHIP for the Nationals. It's time for a new nickname, though The National Clippard leaves plenty to be desired.