The Rangers suffered an early injury with DeShields likely out for a while.
Almost 30 percent of MLB players on opening day rosters were not from the United States and they came from a record 21 countries.
Outfielder Billy McKinney has been recalled from Triple-A Scranton/Wilkes-Barre to take Hicks' spot on the roster.
Both team wore patches with the initials "MSD" and 17 stars during Thursday's opening day game to honor the victims of the mass shooting.
The Kansas City Royals have been dealt a blow heading into the new season, with Salvador Perez suffering a freak injury.
According to FanRag Sports, Puk is dealing with an elbow issue, but the A's have yet to acknowledge he has any kind of injury at all.
Tomas, 27, is due $46M over the next three seasons but couldn't make the big club out of spring even with fellow OF Steven Souza Jr. hurt.