(Jonathan Newton/WASHINGTON POST)

Rendon, 22, was rounding third base on April 7 in a game for Class A Potomac at Lynchburg in the fourth inning when he fell to the ground. He had to be helped off the field in only his second minor league game.

The Nationals selected the third baseman out of Rice with the sixth overall pick in last year’s draft. He is on the Nationals’ 40-man roster because his draft deal stipulated it, but he began the season in the minor leagues. The Nationals believe his slick fielding can translate to any infield and rave about his quick, easy swing.

While his timetable is unclear at the moment, it is likely the first step of many in his rehab process.

Update: Batting leadoff, Rendon finished 0 for 2, with a lineout and flyout, in his first game. He was substituted out of the game in the fourth inning.

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