Astros released 1B Brett Wallace.
Astros optioned C Max Stassi to Triple-A Oklahoma City.
Astros optioned OF Domingo Santana to Triple-A Oklahoma City.
Astros optioned LHP Luis Cruz to Triple-A Oklahoma City.
Astros optioned RHP David Martinez to Triple-A Oklahoma City.
Jason Castro went 2-for-3 and hit a two-run homer off Sean Nolin in the Astros' 4-3 win over the Blue Jays on Sunday.
Jonathan Singleton is still hitless for the spring after going 0-for-3 on Sunday.
Astros optioned RHP Paul Clemens to Triple-A Oklahoma City; reassigned RHPs Jake Buchanan, Bobby Doran, Nick Tropeano and Jason Stoffel, C Ryan McGurdy, OFs Preston Tucker and Leonardo Heras, INFs Jonathan Meyer and Ronald Torreyes to minor league camp.
Chris Carter hit a three-run homer Saturday against the Yankees.
The Astros have shifted 2011 third-round pick Jack Armstrong Jr. from pitcher to first base.
Dallas Keuchel pitched three hitless innings while facing mostly regulars Saturday against the Phillies.
Brett Oberholtzer was pounded for six runs -- five earned -- in two innings by the Nationals on Friday.
Dexter Fowler (neck) will return to the lineup Saturday.
Dexter Fowler (neck) is expected back in the lineup Friday.
Delino DeShields Jr. went 0-for-4 with two strikeouts on Wednesday and is hitless in 10 at-bats so far this spring.