Bass and Young both spent last season in Pittsburgh's organization, and Quinlan made it to the Majors with the Angels in each of the past eight seasons. Philadelphia also invited two catchers from within the organization -- Tuffy Gosewisch and Joel Naughton -- and Minor League relievers Michael Schwimer and Michael Stutes to help flesh out the Spring Training roster.
Bass, 29, spent most of last season at Triple-A Indianapolis, where he logged a 4-4 record and a 3.26 ERA in 41 games. The right-hander made four appearances with the Pirates in 2010 and also pitched for Minnesota in '08 and Baltimore in '08 and '09. Bass has a 9-7 record and a 5.16 ERA in 101 games at the big league level.
Young, a Los Angeles native, spent all of last season in the big leagues, where he batted .236 with seven home runs and 28 RBIs in 110 games for the Pirates. The 28-year-old finished third in the Major Leagues with 16 pinch-hits and started games in right field and at two infield positions. Young is a .258 hitter with 17 homers in five seasons of big league action.
Quinlan, meanwhile, is embarking on a new chapter in his career. The 33-year-old first baseman was drafted and developed by the Angels, and he batted .276 with 25 home runs in 458 games for Los Angeles over the past eight seasons. Quinlan, who also plays third base and the outfield, is a .298 career hitter against left-handers and a .251 hitter against righties.
Naughton, 24, batted .308 with five homers for Class A Clearwater last year. He missed time due to disabled list stints for shoulder inflammation and a fractured right hand. Gosewisch, meanwhile, hit .241 with nine home runs for Double-A Reading. An 11th-round Draft pick in 2005, he was also an invite to Spring Training the past two years.
Both Schwimer and Stutes are right-handers who split their seasons between Reading and Triple-A Lehigh Valley last year. Schwimer, a 14th-round Draft pick in 2008, has an 11-9 career record with 39 saves and a 2.77 ERA. Stutes, an 11th-round selection in '08, has posted a 22-11 record with three saves and a 3.36 ERA thus far in his career.
Spencer Fordin is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.