Red Sox starting pitcher prospect Rubby De La Rosa continues to show improvement at Triple-A Pawtucket as he continues to work his way back from Tommy John surgery in 2011. The right-hander struck out a season-high seven batters Saturday in four scoreless innings, allowing one hit and two walks.
De La Rosa, who remains on a strict pitch count, hasn't allowed a run in four straight outings (14 innings). He's allowed eight hits and four walks, while striking out 19 batters in that span.
De La Rosa threw a season-high 71 pitches Saturday, which 46 went for strikes, according to WEEI. He also had seven swings and misses.