Per Amanda Comak of the Washington Times, Harper will visit noted orthopedist Dr. James Andrews on Monday.
Comak also tweeted that "Harper did some running in the pool today and his knee still swelled so the
"#Nats still insist Harper's injury is bursitis, not worse. Surgery to remove bursa sac would be last resort, would add several weeks to ...," CSN Washington's Mark Zuckerman tweeted.
In 44 games, Harper is hitting .287 with 12 home runs and 23 runs batted in.