Bryce Harper, the Nationals’ top draft pick, sprained his ankle in a minor-league scrimmage today in Viera, Fla.

The Nationals announced that Harper is day-to-day after suffering the injury at first base and being carted off the field.

The Nats Blog reported the news, with photos, via Twitter; here’s the sequence of tweets on the injury:

About to watch a nats minor league game, all the prospects are here

Harper strikes out on some high cheese

Bryce Harper is down, just hurt himself running to first base in scrimmage.. On ground in pain

Bryce Harper was just carted off of field, hurt ankle

Harper Looked to be in serious pain when on the cart... Few in attendance stunned