Bryce Harper of the Washington Nationals has officially been cleared to walk and jog on his injured knee a week after receiving a cortisone shot and a platelet-rich plasma injection into the injured joint, according to reports. Harper was placed on the DL for his knee injury on June 1.

The outfielder will be evaluated throughout his rehabilitiation, which will also include other weighted activities, according to team trainer Lee Kuntz.

"You have to see how he reacts to the one thing before you can add the second," Kuntz said Monday. "Otherwise you're trying to cut out steps and that doesn't work. We'll do baseball activity once he's able to do other functional ground-based activities like running. Running is the key, for me."

Dr. James Andrews injected the former No. 1 overall pick during an evaluation held in Florida a week before Monday. Harper has been out of action since May 26 and has been fighting the knee injury since colliding with the outfield wall tracking down a fly ball two weeks earlier.

Harper was hitting .287 with 12 home runs and 23 RBIs before being placed on the disabled list. He hit .270 for 22 home runs and 59 RBIs in 533 at-bats during his rookie season.

Harper was the 2012 NL rookie of the year and a member of the MLB National League All-Star team. One of the nation's top prospects, Harper was an acclaimed amateur player before working his way through the Nationals' farm system.

Harper was the 2010 Golden Spikes Award winner and the SWAC Player of the Year.