HOUSTON -- Nationals left-hander Scott Olsen continued to throw on the side Tuesday in his recovery from an injury to his left shoulder.
Olsen, who is 2-2 with a 3.77 ERA in eight starts, was placed on the disabled list May 22.
"I've been throwing every day since Saturday," Olsen said. "It's getting there.
Olsen said there is no timetable for his return. His throwing has been limited to long-tosses, which reached about 150 feet Tuesday.
Olsen said he had been doing some new exercises to help strengthen his arm the past week.
"So far it's helped," Olsen said of the new workouts. "I've got more range of motion. I can get through my pitches playing catch a lot better so far. Hopefully it will carry over to the mound, which we should be able to do in the next couple of days."
He said a Minor League rehab assignment is a possibility.
"I might," he said. "We haven't gotten that far yet. We haven't had that discussion. It's certainly a possibility."
The arrival of top prospect Stephen Strasburg will not figure into Olsen's return.
"It's not going to affect my decision," he said. "We all knew he was coming. We've all known since Spring Training he was coming."