The Washington Nationals are expected to activate Bryce Harper from the disabled list before Monday night's game against the Colorado Rockies, according to sources.

Harper will be in the lineup and playing left field. The Nationals haven't made a formal announcement.

He hasn't played a Major League game since April 25, when he tore an ulnar collateral ligament in the left thumb while sliding headfirst into third base against the San Diego Padres.

Harper played five Minor League games this past week and went a combined 9-for-14 [.643] with four home runs and 10 RBIs for Class A Potomac and Double-A Harrisburg.