Nathan threw about 20 pitches in a bullpen session Monday and came away feeling great, Glenn Sattell of MLB.com reports. "Pretty easy day, just made sure my stuff was kind of in the zone when I wanted to," Nathan said. "For the most part, I threw strikes; didn't throw too many breaking balls. But mixed in sinkers, change."

EDGE Analysis

The 42-year-old is trying to resume his career after Tommy John surgery in April of 2015, and his lengthy resume makes him an intriguing wild card in a bullpen that currently lacks an established closer. The Nats have a history of adding veteran arms off the scrap heap every spring, so if Nathan can show he has something left, his chances of breaking camp on the 25-man roster might be better than you'd think. Whether that translates into saves and fantasy value, though, is another question entirely.