Langerhans, 28, rejoins the Nationals after hitting .310 with three home runs, 31 RBIs and 12 stolen bases in 62 games with the Clippers. In 23 games with Washington this season, Langerhans is 6-for-30 (.200) with three RBIs and two stolen bases. He has gone 2-for-7 with one walk and one RBI as a pinch-hitter.
Langerhans learned about the promotion while shopping with his wife in Columbus. He arrived at Nationals Park while the team was taking batting practice.
"When they called me and told me I was coming up, I just ran back into the house and grabbed some things, packed up and headed to the airport."
Langerhans can play all three outfield positions, while Willie Harris will get the bulk of the playing time in center field. Entering Friday's action, Harris, a hard-working utility man, was hitting .306 in his last 17 games.
Bernadina, 24, batted .125 (5-for-40) and scored two runs in 10 games with the Nationals. Bernadina, who acknowledged he was disappointed by the demotion, was told by the team he has to shorten his swing. With his speed, the Nationals also would like him to bunt more often.
During his time in the big leagues, Bernadina bunted only three times. Washington manager Manny Acta felt Bernadina wanted to show the team he belonged by swinging the bat.
"I got myself out all day long," Bernadina said. "You are never happy when they send you down. I want to stay, but that's part of the business. Things were not going well. My swing was too long, and that's why they sent me down."
Bill Ladson is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.