The Sox’ first-round draft pick in 2014 hasn’t pitched in the majors since Sept. 30 last season.
Derek Holland pitched one of his better games of the year Sunday, but the taxed Sox’ bullpen let the Athletics rally for a 5-3 victory.
A 4-2 loss Sunday to the Marlins left the Cubs just one game over .500 as they prepare to face the NL East-leading Nationals in a four-game series.
MORRISSEY: Struggling Cub will start minor-league stint Monday night.
Michal Kempny, Gustav Forsling and Jan Rutta all will get a chance to be major players next season.
With eight or more regulars gone, Joel Quenneville has a new a puzzle to put together.
Russell’s shoulder issue has been a recurring problem since at least last year and could sideline him for the next game or two against the Nationals.