The Nationals and reliever Drew Storen avoided arbitration by agreeing to a $2.5 million contract for 2013, according to an announcement made over Twitter by CAA Sports, Storen's representative.

Storen could make as much as an extra $1 million based on games finished. Storen will make $250,000 if he finishes 20 games. He'll make an additional $50,000 if he reaches 35 games finished; an additional $100,000 for 40 games finished; an additional $150,000 for 45 games finished; an additional $200,000 for 50 games finished; and, finally, an additional $250,000 if he finishes 60 games.

The structure of the deal will allow Storen to earn his full value should he become the Nationals' closer because of an injury to new closer Rafael Soriano – or if he is traded and becomes a closer for a different club.

Last year, Storen missed the first three months of the season after undergoing surgery to remove a bone chip from his right elbow in mid-April. He became dominant down the stretch, finishing his truncated season with a 2.37 ERA over 30 1/3 innings and five saves. In 2011, Storen established himself as one the sport's best young closers, saving 43 of the Nationals' 80 wins and punching up a 2.75 ERA.