Harris (neck) won't be with the Nationals for Opening Day and will remain at extended spring training to continue his rehab, Matt Weyrich of NBC Sports Washington reports.
Harris was reportedly healthy entering spring training after undergoing surgery for thoracic outlet syndrome last June, but he's recently experienced some lingering issues and is set to open the season on the injured list. The veteran right-hander was limited to eight games for Washington last season, but he had a 3.06 ERA, 1.70 WHIP and 21:9 K:BB over 17.2 innings during his first year with the team in 2020.