Padres starter Joe Musgrove shut down for at least 3 weeks with shoulder inflammation

Musgrove was scratched from his scheduled start and had an MRI revealing inflammation in his right shoulder capsule.
The Padres have won 5 of their last 6 games but are 9 games back and 1 game under .500.
Musgrove had been experiencing minor but worsening shoulder stiffness in recent starts.
The Padres acquired several players at the trade deadline but have multiple injured pitchers.
Musgrove's absence is a significant blow as the Padres face teams above .500.