According to MLB.com, the Astros may try to trade Presley if they are unable to keep him. Presley, 29, slashed .212/.316/.333 with three RBI over 33 spring at-bats.
Singleton, 23, made his debut in 2014 and hit .168 over 310 at-bats in his first season in the majors. He hit .213 this spring.
"There are definitely things I need to improve on," Singleton said. "This move was necessary."
Chapman, 27, registered a 4.64 ERA in his second season in the majors last year. This spring, he posted a 2.16 ERA, a 1.44 WHIP and 10:3 K:BB ratio over 8 1/3 innings.
"I just need to just polish up a little bit," Chapman said.
"Sipp's on the team," Hinch told MLB.com's Brian McTaggart.
There are still three pitchers battling for the final spot in the Astros pen:
Thatcher is the most experienced, but he's not on the team's 40-man roster. Still, he appears to be the favorite.
"Thatch has thrown well and has some experience," Hinch said. "Chapman is still in the mix."
"Likely," Hinch said of a seven-man bullpen. "There’s always a chance that (changes) depending on how the schedule plays out, and there’s always a debate on how many pitchers to carry during interleague. Now interleague is pretty much year round, so I mean, in a perfect world with our roster, it’s likely to carry a seven-man ‘pen. If we feel like we need an extra pitcher or injury happens, there’s different ways to shape our roster, then we will, but likely 12."
The two open spots will likely be filled by a left-handed pitcher and a long reliever. The competition for the second lefty in the pen likely comes down to
"We’re going to stretch out a lot of our guys," Hinch said. "Some of them are because they’re competing in that fifth starter spot, some of them are bullpen guys.
"[The changeup is] something I sort of messed with last year when I was sent down and I was in Triple-A," Chapman said. "I thought while I was there I'd try to throw it and get another pitch. When I came back up, I didn't use it that much, but when I did, it was effective. That's something I really wanted to explore and see what it's got for me."
He wants to be able to keep hitters on their toes for this season.
"Last year, it wasn't like key situations or a full count or something like that, but any time I had an opportunity to use it in a situation that's not vital to one pitch, I used it and I was getting good results and getting it for strikes, and when guys were putting it in play, it was weak contact," he said.
Chapman has a 1.23 ERA in 44 innings of relief in Triple-A this season, but struggled mightily in his last trip to the majors. He allowed seven runs over 5 2/3 innings in seven major-league appearances earlier in the season.
|CBSSports.com Player Ranking|
|9/28/2014 vs N.Y. Mets|
|vs N.Y. Mets||1.2||1||0||0.00||0||1||0|
|Last 7 Games|
|Complete Game Log|
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|More Pitching Stats|
|Minor League Pitching Stats|
|2010||AFA-Wilmington Blue Rock||1||1||5.50||14||0||0||0||1||18.0||20||13||11||1||1||8||20|
|2011||AFA-Wilmington Blue Rock||0||2||4.91||15||0||0||0||7||22.0||24||14||12||1||0||7||40|
|2011||AA-Northwest Arkansas N||1||2||5.08||25||0||0||0||3||39.0||37||25||22||5||2||21||50|
|2012||AA-Corpus Christi Hooks||6||3||2.64||49||0||0||0||2||58.0||49||19||17||2||1||32||59|
|2013||AAA-Oklahoma City RedHaw||1||2||3.20||45||0||0||0||2||50.2||42||23||18||2||1||36||61|
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