Max Scherzer Returns to Injured List with Shoulder Fatigue

Texas Rangers pitcher faces second IL stint this season, replaced by Walter Pennington from Triple-A

Scherzer, 40, has battled multiple injuries this season, including back surgery and nerve issues.
He has a 2-4 record with a 3.89 ERA in eight starts since his late June debut.
The Rangers, struggling this season, are 4.5 games behind the AL West leaders.
Walter Pennington, recently acquired in a trade, fills Scherzer's roster spot.
Rangers' rotation also missing key pitchers Jacob deGrom, Tyler Mahle, and Jon Gray.