Nats sign Rafael Martin

It might not be the big international signing some are waiting for from the Nationals, but the club’s latest addition could turn out to be a key piece for the bullpen down the road.

The team has purchased the contract of 25-year-old reliever Rafael Martin, who pitched for Saltillo in the Mexican League and was on Mexico’s Caribbean Series team.

The 6-foot-2 reliever will be in the Nationals’ accelerated development camp, which starts tomorrow, and is thought to be a quick riser who could eventually be a setup man for Drew Storen at the major league level.

Martin throws a fastball that tops out around 94 mph, and was 6-3 with a 4.12 ERA for Saltillo in 2009. He struck out 65 batters in 63 1/3 innings, and posted a 1.30 WHIP in that time.