Bisenius, 28, appeared in five games for the Nationals last year in his first MLB action since 2007. He spent most of the season in the minors, where he posted a 3.05 ERA with 10.8 K/9 and 3.8 BB/9 in 38 1/3 innings across three levels.
Wood logged 27 2/3 innings for the Marlins last year, posting a 5.53 ERA. Also 28, he has a 4.72 ERA with 7.4 K/9 and 3.8 BB/9 over the course of his eight-year minor league career.
Van Every played all three outfield positions for the Red Sox in 2010, the third consecutive season in which he had a brief stint in the majors. Red Sox manager Terry Francona has called on the 31-year-old to pitch in both of the past two seasons and Van Every has also pitched in a minor league game. He has a .254/.356/.477 line in a decade's worth of minor league plate appearances.