Soriano has had the most at-bats against Wakefield of any National (33), coming up with 10 hits and four home runs against the knuckleballer.
Livan Hernandez takes the ball for the Nationals on Tuesday, coming off his highest pitch count of the season against Colorado. Hernandez has faced Boston once in his career -- giving up five runs in 6 1/3 innings.
WAS: RHP Livan Hernandez (5-7, 5.18 ERA)
Hernandez is coming off a 138-pitch outing against Colorado.
BOS: RHP Tim Wakefield (4-8, 3.97 ERA)
Wakefield has lost four of his last five decisions.
Player to watch
Guillen has a .333 average against Wakefield in nine at-bats.
On the Internet
Official game notes
WASH: Washington Post Radio AM/FM
Wednesday: Washington (Shawn Hill, 1-1, 2.42) at Boston (Jon Lester, 1-0, 3.48), 7:05 p.m. ET
Friday: Washington (John Patterson, 1-0, 3.86) at Baltimore (Rodrigo Lopez, 4-8, 6.85), 7:05 p.m. ET
Saturday: Washington (Ramon Ortiz, 5-5, 5.27) at Baltimore (Adam Loewen, 0-2, 7,82), 4:35 p.m. ET
Michael Walsh is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.