Bernadina was treated by the team and returned home to the Netherlands on Sunday. He is expected to be ready for Spring Training, according to his agent, Storm Kirschenbaum.
"It was not a major injury," Kirschenbaum said. "We decided it was best to go home, wrap it up and get some rest."
The left-handed-hitting Bernadina, 24, is considered one of the Nationals' top hitting prospects. In 2008, he hit .334 with nine home runs and 54 RBIs for Double-A Harrisburg and Triple-A Columbus. He also had two stints with the Nationals, hitting .211 with two RBIs.
Bill Ladson is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.