Phillies to square off against former prospects Cosart, Zeid on Saturday

Jarred Cosart has one of the best arms in the Phils' system.He has a 3.92 ERA with 79 strikeouts for Clearwater. (Elizabeth Roberton/Staff Photographer)

Officially, Bright House Field is booked to host the Phillies' Grapefruit League opener against the Astros on Saturday, but the proceedings are going to feel more like a reunion for a number of players from both teams. The Astros have announced that Jarred Cosart, a one-time Phillies prospect who was dealt to the Astros in the Hunter Pence trade in 2011, will pitch against the Phillies on Saturday. So, too, will Josh Zeid, who was also dealt in the Pence trade. 

Cosart was actually playing his home games at Bright House Field when he learned that he had been traded. Now entering his 23-year-old season, Cosart started 19 games for the Threshers in 2011, posting a 3.92 ERA with 6.0 K/9 and 3.2 BB/9. Several of his teammates from that season, including one-time roommate Jonathan Pettibone, are in camp with the Phillies. Other 2011 Threshers who will be on hand for Saturday's game include Tyler Cloyd (13 games in 2011), Justin Friend (26 appearances), Darin Ruf (133 games, .308/.388/.506 w/ 17 HRs), Cesar Hernandez (119 G, .268/.306/.333), Sebastian Valle (91 G, .284/.312/.394) and Joe Savery (54 G, 228 PA, .307/.368/.410). Chances are good that Jonathan Singleton (93 games) would have been on the trip if he had not tested positive for marijuana and been suspended 50 games (Singleton is not participating in major league spring training). But former short stop prospect Jonathan Villar, traded to the Astros in 2010 in the Roy Oswalt deal, is in big league camp and could be on the trip. He and Zeid were teammates in 2010 at Lakewood. Zeid, who is heading into his 26-year-old season, appeared in 47 games as a reliever at Double-A Corpus Christi last season and posted a 5.59 ERA, 10.5 K/9, 3.2 BB/9 and 1.0 HR/9. 

Cosart, Singleton and Villar are all mentioned as potential midseason callups for the Astros, who are a near unanimous pick to have the worst team in the majors this season.