The Orioles released the names of their initial 44 players on the 60-man summer camp roster on Sunday.

They added right-handed pitcher Cesar Valdez, who was in minor league camp and used as a fill-in during early spring games to the list. The 35-year-old Valdez struck out nine while walking none and gave up two hits in five innings.

Trey Mancini, who is recovering from colon cancer surgery and will not play in 2020, was placed on the 60-day injured list. The Orioles’ 40-man roster is now at 38.

Among the players who were on the 50-man roster when transactions were frozen in late March but not on this roster are: left-hander Bruce Zimmermann, right-hander Evan Phillips. catcher Taylor Davis, infielder Richard Urena, and outfielders Yusniel Diaz and Mason Williams.

David Hess, who was sent to Triple-A Norfolk after the end of camp, was added to the camp roster.

Phillips was rehabbing a sore right elbow when spring training ended. Among those left off the list are: left-handed pitcher Keegan Akin, right-handed pitcher Dean Kremer and infielder/outfielder Ryan Mountcastle, who are expected to see major league action in 2020. Outfielder Cedric Mullins, who was sent down to Norfolk along with Hess and Mountcastle, is also not on the list.

The Orioles might add players, including left-handed pitcher DL Hall, right-handed pitcher Grayson Rodriguez and catcher Adley Rutschman to give them additional work at an alternate site. None is expected to play for the Orioles in scheduled 60-game 2020 season.

PITCHERS (26)
RHP Shawn Armstrong
LHP Ty Blach*
LHP Richard Bleier
RHP Cody Carroll
RHP Miguel Castro
RHP Alex Cobb
RHP Thomas Eshelman*
LHP Paul Fry
RHP Mychal Givens
RHP Eric Hanhold*
RHP Hunter Harvey
RHP David Hess
RHP Branden Kline*
LHP Wade LeBlanc*
RHP Travis Lakins, Sr.
LHP John Means
LHP Tommy Milone*
LHP Tanner Scott
RHP Chandler Shepherd*
RHP Kohl Stewart
RHP Cole Sulser
RHP Dillon Tate
RHP Cesar Valdez*
RHP Hector Velázquez
RHP Asher Wojciechowski
LHP Rob Zastryzny*

CATCHERS (4)
Bryan Holaday*
Pedro Severino
Chance Sisco
Austin Wynns

INFIELDERS (10)
Hanser Alberto
Chris Davis
Dilson Herrera*
José Iglesias
Richie Martin
Renato Núñez
Rio Ruiz
Pat Valaika*
Andrew Velazquez
Stevie Wilkerson*

OUTFIELDERS (4)
Austin Hays
Anthony Santander
Dwight Smith, Jr.
DJ Stewart

*Indicates Non-Roster Invitee