Winker, 22, is slashing .303/.405/.394 with two home runs and 17 RBI through 30 games for Triple-A Louisville.
Perhaps most impressively, Winker has more walks (20) than strikeouts (14). On the downside, his power has been almost non-existent after he hit 13 home runs in 123 games at Double-A last year, but there's still plenty of time for him to develop that aspect of his game.