Haven't we beaten up on Perez before?
Perez Career against Washington6/21/05 vs WSH: 5 IP 5 H 3 R 3 ER 1 HR 3 BB 6 K (Win)
5/5/06 @ WSH: 4 IP 3 H 4 R 4 ER 1 HR 4 BB 1 K (Loss)
10/1/06 @ WSH: 4 IP 5 H 1 R 1 ER 0 HR 1 BB 4 K (ND)
4/27/07 @ WSH: 7 IP 8 H 4 R 4 ER 1 HR 0 BB 9 K (Loss)
8/18/07 @ WSH: 5.2 IP 7 H 3 R 3 ER 0 HR 3 BB 3 K (Win)
4/24/08 @ WSH: 5.2 IP 6 H 5 R 5 ER 0 HR 4 BB 3 K (Loss)
8/14/08 @ WSH: 6.2 IP 6 H 3 R 3 ER 0 HR 3 BB 8 K (Win)
9/9/08 vs WSH: 3.1 IP 8 H 7 R 7 ER 1 HR 2 BB 3 K (ND)
4/26/09 vs WSH: 4.1 IP 9 H 7 R 7 ER 2 HR 3 BB 3 K (Loss)
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45.2 IP 57 H 37 ER 6 HR 23 BB 40 K (3-4, 7.29 ERA, 1.75 WHIP)