Astros make sweeping roster changes, including calling up prospect Domingo Santana

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One day after making headlines for all the wrong reasons the Astros are adding a bunch of young talent to their roster, calling up prospects Domingo Santana, Enrique Hernandez, and Kevin Chapman. They also placed center fielder Dexter Fowler on the disabled list with an intercostal strain, demoted shortstop Jonathan Villar to Triple-A, and designated right-hander Jerome Williams for assignment.

That’s a whole bunch of changes, so let’s break it all down …

Santana is the big draw, as the 21-year-old outfielder hit .304 with 13 homers and an .885 OPS in 84 games at Triple-A after putting up similarly strong numbers at Double-A last season. He now joins Jon Singleton, Jarred Cosart, and Josh Zeid on the Astros’ roster after all four players were acquired from the Phillies as prospects in the Hunter Pence trade in 2011. That is starting to look like one of the more lopsided deals in recent history.

Hernandez was the Astros’ sixth-round draft pick in 2009 and didn’t look like much of a prospect before this season, but the 22-year-old infielder/outfielder has had a breakout campaign by hitting .336 in 77 games between Double-A and Triple-A.

Chapman was very effective in his 25-game debut with the Astros last year, but was demoted back to the minors after struggling to begin this season and the 26-year-old left-hander returns after posting a 0.94 ERA and 37 strikeouts in 29 innings at Triple-A. His control has always been shaky, but Chapman has bat-missing raw stuff out of the bullpen.

Fowler was acquired from the Rockies this offseason and proved to be a fantastic addition atop the lineup before the injury, posting a .377 on-base percentage despite no longer calling Coors Field home. Villar has a ton of speed and remains in the Astros’ long-term plans at age 23, but he’s hit just .221 with a .618 OPS and ugly 139/39 K/BB ratio through 129 games as a big leaguer.

Cardinals place Greg Holland on 10-day disabled list with hip impingement

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Cardinals right-handed reliever Greg Holland has been placed on the 10-day disabled list with a right hip impingement, per a team announcement on Saturday. In corresponding moves, catcher Carson Kelly (right hamstring strain) and lefty reliever Tyler Lyons (back strain) were activated from the disabled list, while catcher Steven Baron was optioned to Triple-A Memphis. The team has yet to reveal how long Holland is expected to be sidelined.

The 32-year-old reliever hasn’t looked quite himself this season, limping toward a 9.45 ERA, 10.1 BB/9 and 6.8 SO/9 in just 13 1/3 innings of work. It’s a concerning departure from the sub-4.00 ERA and NL-leading 41 saves he posted with the Rockies in 2017, though a brief stay on the disabled list may help him iron out some of the issues that have prevented him from replicating those numbers in 2018. This is the first major injury he’s sustained since 2015, when he underwent surgery to repair a torn UCL in his pitching arm; he doesn’t appear to have a history of hip issues, either.

Lyons, 30, will slot back into the bullpen while Holland recovers. The left-hander landed on the 10-day disabled list in mid-May after pitching to a 6.17 ERA, 3.9 BB/9 and 9.3 SO/9 across 11 2/3 innings — underwhelming results, to be sure, but nothing close to Holland’s career-worst output. Lyons saw mixed results in two rehab starts with Double-A Springfield earlier this month, allowing two runs on two hits and recording one strikeout in 1 2/3 innings.