Brock Holt (head) won't play in the Red Sox' three-game series at Pittsburgh's PNC Park.
Brock Holt's visit to a specialist Thursday confirmed that he indeed has a concussion.
Brock Holt was sent to see a concussion specialist in Pittsburgh.
Brock Holt (illness, neck) is out of the starting lineup for the Red Sox again on Thursday against the Royals.
Brock Holt remains out of the Red Sox starting lineup on Tuesday night against the Orioles.
Brock Holt (illness) is out of the Red Sox starting lineup again on Monday versus the Orioles.
Brock Holt (illness) remained out of the Red Sox' lineup Sunday.
Brock Holt was forced to leave Friday's game against the Blue Jays due to dizziness.
Brock Holt went 1-for-4 with a stolen base and a run scored in a win over the Rays on Sunday.
Brock Holt went 2-for-4 with a double and an RBI single as the Red Sox pounded their way to a victory over the Astros on Thursday.
Brock Holt is hitting just .158/.226/.211 (9-for-57) over his last 14 games.
Brock Holt went 2-for-5 and scored a run as the Red Sox blanked the Royals 6-0 on Sunday.
Brock Holt finished 5-for-6 with a home run and two runs scored against the Astros on Sunday.
Brock Holt doubled, tripled, and scored a run over five trips to the plate, but the Red Sox were handed a loss by the White Sox on Tuesday.