Travis d’Arnaud is tearing it up in Triple-A, and his production isn’t wholly a byproduct of the Pacific Coast League. His Las Vegas teammates Moises Sierra, Adeiny Hechavarria, and Anthony Gose are equally on fire, and they’re four games back of Fresno in the Southern Division. Elsewhere, Michael Crouse and Jake Marisnick returned from injury for the Dunedin Blue Jays, and Sean Ochinko exceeds expectations as A.J. Jimenez’s replacement in New Hampshire.

Follow the progress of the Blue Jays’ Top 20 Prospects, as ranked by Kevin Goldstein, at the Baseball Prospectus Prospect Tracker.

Kevin Ahrens – 11-for-35, 1 2B, 3 HR, 8 SO, 3 BB over last two weeks; smoked three home runs in the span of a week, earning Florida State League Player of the Week honors along the way. Thirty-six percent of Ahrens’ extra-base hits for the year came that week.

Markus Brisker - 5-for-24, 1 2B, 10 SO, 6 BB; the good: Brisker is walking at a reasonable clip and stealing bases efficiently. The bad: he still can’t get his batting average above the Mendoza line for more than a couple of days at a time.

Andrew Burns – 7-for-42, 5 2B, 11 SO, 8 BB; gets lost among the Blue Jays’ plethora of middle infield prospects, but is having a very good first full season, Last year’s 11th-round pick has the athleticism to stick at shortstop as he climbs the ladder, but his bat should play if he has to shift to second or third base.

David Cooper – 10-for-35, 3 2B, 2 HR, 3 SO, 3 BB; started hot, collecting 15 hits in his first 11 games after a late-May promotion from Las Vegas, but has only one hit in his last 12 at-bats since June 7. Scouts are confident that he’ll hit in the big leagues, but his power still leaves something to be desired. He’ll have to maintain high averages with plenty of doubles to compensate for his lack of over-the-fence pop.

Michael Crouse – 6-for-27, 1 2B, 10 SO, 2 BB; he’s hit .222 since returning from the disabled list on June 3, which has actually raised his average from .194 to .200.

Travis d’Arnaud – 22-for-52, 4 2B, 3 HR, 12 SO, 2 BB; has hit .378 with 13 of his 15 home runs since May 1; d’Arnaud actually has a higher batting average (.347) on the road than at home (.339).

Yan Gomes – 11-for-34, 6 2B, 2 HR, 8 SO, 1 BB; saw time at four positions in Toronto before being sent back to Las Vegas yesterday. The fact that John Farrell let him catch, even if it wasn’t a start, speaks volumes.

Anthony Gose – 17-for-56, 4 2B, 1 3B, 9 SO, 6 BB; Billy Hamilton has received all of the headlines, but Gose is actually a better base stealer than the young Reds “shortstop.” Has been caught stealing only twice in his last 26 tries and has bounced back from a slow start to bat .345 in May and June.

Christopher Hawkins – 12-for-48, 4 2B, 6 SO, 3 BB; possesses one of the most consistent bats in the organization, albeit without much power (so far). Batting average hasn’t been below .300 since April 7.

Adeiny Hechavarria – 18-for-50, 3 2B, 1 3B, 9 SO, 3 BB; continues to win people over with his renewed presence at the plate and is hitting .424 (!!!) in 59 at-bats against left-handed pitchers.

Justin Jackson – 10-for-38, 1 2B, 1 3B, 14 SO, 1 BB; tease.

Marcus Knecht – 8-for-33, 2 2B, 1 3B, 15 SO, 11 BB; hasn’t gone deep since May 26, but has five hits in his last three games.

Jake Marisnick – 4-for-12, 1 3B, 4 SO, 1 BB; returned from the disabled list on June 9 and went 3-for-5 with his sixth triple of the year on Sunday.

Mike McDade – 12-for-46, 4 2B, 1 HR, 8 SO, 8 BB; tied with Mark Sobolewski for the Fisher Cats lead with 10 home runs and leads the team in total bases and RBI.

Jack Murphy – 6-for-31, 2 2B, 1 3B, 6 SO, 5 BB; hasn’t hit as well as expected since taking over the full-time catching gig in Dunedin after Sean Ochinko replaced A.J. Jimenez in New Hampshire. Has intriguing pop and patience at the plate.

Kevin Nolan – 19-for-49, 8 2B, 3 HR, 7 SO, 3 BB; performing about as well as one would expect a 24-year-old from a Division I school in his second Florida State League season to.

Sean Ochinko – 10-for-38, 3 2B, 2 HR, 6 SO, 3 BB; very interesting catching prospect (as if the Blue Jays need more of those) drafted out of LSU in 2009. Has hit better than expected, especially in the power category, since arriving in New Hampshire three weeks ago.

Carlos Perez – 6-for-35, 1 2B, 4 SO, 5 BB; remarkably consistent, though moderately disappointing, in his second tour of the Midwest League. No need to push him to Dunedin with d’Arnaud, Ochinko, and Murphy ahead of him in the organization.

Kevin Pillar – 13-for-45, 3 2B, 8 SO, 9 BB; he’s fast and he takes walks but he’s also a 23-year-old college product in the Midwest League, so….

Ryan Schimpf – 11-for-38, 4 2B, 1 HR, 4 SO, 8 BB; another guy who is old for his level, but of whom I am a fan. Very interesting power and a decent approach, let’s all hope he gets a shot at Double-A in the second half.

Moises Sierra – 19-for-47, 3 2B, 5 HR, 3 SO, 4 BB; hitting .436/.500/.897 with five home runs, four walks, and only one strikeout in 44 June plate appearances. #FREEMOISESSIERRA