DUNEDIN, Fla. - J.P. Crawford, the Phillies' top prospect, will miss the rest of spring training and the start of the minor-league season with a left oblique strain. The team said Crawford will be sidelined for four to six weeks.

The shortstop was expected to start the season at single-A Clearwater but had a chance to begin at double-A Reading.

The Phillies selected Crawford with the 16th pick of the 2013 draft. Crawford, 20, spent the second half of last season at Clearwater, hitting .275 in 236 at-bats.

The Phillies had instructed him to work on his defense this offseason. He made 29 errors in 121 games last year. Baseball America ranks Crawford as the team's best prospect and the 14th-best in baseball.

- Matt Breen