sports officiating

AP sources: MLB umpire tests positive for virus, crews shift

The Latest: US Open final goes to 5th set as Thiem rallies

Zverev erases 2-set hole, will face Thiem in US Open final

Zverev overcomes 12 double-faults at US Open; Osaka into SF

LEADING OFF: MLB looks into GM's ejection, Brock mourned

Djokovic out of US Open after hitting line judge with ball

Butler makes FTs with no time left, lifts Heat past Bucks

Talk of 'fake bubble,' 'bubble in bubble' on US Open's Day 1

Trout gets another up-and-in heater from SF pitcher in loss

As the NBA playoffs begin, here are 10 things to know