Others to keep an eye on are the youngsters, including the club's top four prospects, per MLB.com.
Third baseman Kaleb Cowart, the club's No. 1 prospect, is looking to impress after a rough season at Double-A Arkansas, where he hit just .221.
No. 2 prospect C.J. Cron, a first baseman, looks to bring the hot bat he wielded in the Arizona Fall League to Spring Training after hitting .413 with five home runs and 20 RBIs for the Mesa Solar Sox.
Second baseman Taylor Lindsey, the club's No. 3 prospect, hit .274 for Arkansas last season, while No. 4 prospect, right-hander Mark Sappington, was 11-4 with a 3.37 ERA at Class A Advanced Inland Empire before a promotion to Double-A.
Other notable players include right-hander Mike Morin (No. 8 prospect), outfielder Zach Borenstein (2013 California League Most Valuable Player), left-hander Hunter Green (2013 second-round Draft pick) and veteran lefties Wade LeBlanc and Clay Rapada.
The rest of the invites were handed out to right-handers Yeiper Castillo and Jarret Grube, left-hander Justin Thomas, catchers Jeff Bandy and Luis Martinez, infielders Shawn O'Malley, Eric Stamets and Alex Yarbrough, and outfielder Matt Long.
Cash Kruth is a reporter for MLB.com. Follow him on Twitter at @cashkruth. This story was not subject to the approval of Major League Baseball or its clubs.