HOUSTON -- The Astros signed right-handed pitcher Dayan Diaz to a Minor League contract with an invitation to Spring Training, the team announced Thursday.
Diaz, 27, spent his 2016 season in the Reds' organization, posting a 7-1 record with a save and a 3.05 ERA in 40 games (one start) with Triple-A Louisville. He also had two Major League stints with the Reds, appearing in six games (seven earned runs in 6 2/3 innings), in what was his big league debut.
Diaz is a former Astros Minor Leaguer, having spent seven seasons (2006-12) in the Astros' system after being signed by Houston as a non-drafted free agent out of Colombia in 2005.
With the addition of Diaz, the Astros have 19 non-roster invitees scheduled to attend camp, which puts the overall Spring Training roster total at 59 players (29 pitchers, 30 position players). The 40-man roster is currently full. The report dates for Spring Training are Feb. 14 for pitchers and catchers, and Feb. 17 for position players.
Brian McTaggart has covered the Astros since 2004, and for MLB.com since 2009. Follow @brianmctaggart on Twitter and listen to his podcast. This story was not subject to the approval of Major League Baseball or its clubs.