The Washington Nationals announced on Monday that center fielder Denard Span underwent surgery to repair a right core muscle injury.
#Nats CF Denard Span underwent surgery this morning to repair a right core muscle injury.
— Washington Nationals (@Nationals) March 9, 2015
The expected return time is believed to be four-to-six weeks.
Span, 31, played in 147 games for the Nationals in 2014, putting together a .302/.355/.416 line, with 31 stolen bases. Since joining the Nationals via trade prior to the 2013 season, Span has been one of the most effective leadoff hitters in the National League.
For the Nationals, Spans return will be highly anticipated, as they enter the 2015 season eyeing a National League East crown. The team is already missing outfielders Jayson Werth and Nate McLouth, both recovering from off-season surgery.