(670 The Score) Cubs left-hander Jon Lester has been scratched from his scheduled start at the Giants on Wednesday afternoon due to an illness, the team announced.
Right-hander Tyler Chatwood will start in Lester's place. The news comes as the Cubs are mired in a three-game losing streak and hold just a half-game lead over the Cardinals in the National League Central.
Chatwood is well rested, having pitched only twice in July. He's 4-1 with a 4.30 ERA and 1.50 WHIP in 21 appearances, including three starts, this season.
Lester has been as reliable as they come in taking the mound, as he has made at least 31 starts every season since 2008.





