Cabrera, 33, was designated for assignment by the Rangers on Thursday and released on Sunday. He hit a disappointing .235/.318/.393 with 12 home runs and 51 RBI in 368 plate appearances. This comes on the heels of a disappointing two-plus months with the Phillies last year as well.
Cabrera will be beginning his second stint with the Nationals. He spent the second half of the 2014 season in D.C., posting a .700 OPS across 49 games.