9:45 am : Johnson is suffering from an intestinal issue, tweets Pete Abraham of the Boston Globe.
8:21 am: Brian Johnson was placed on the 10-day injured list prior to this weekend's London Series, the Red Sox announced.
Johnson has stayed back in Boston because of a "non-baseball related medical matter that was discovered during routine resting." Though no given timetable for Johnson's return, he is expected to pitch again this season. The lefty has a 6.43 ERA on the season across only 14 innings.
Hector Velazquez was reinstated from the IL to take Johnson's roster spot. Valazquez, like Johnson, has been used as a swingman this season, making 7 starts and appearing 1
Sam Travis was also added to the roster as the 26th man for the London Series, while catcher Oscar Hernandez is also traveling with the team to serve as an emergency option. Travis has been effective in Triple-A, slashing .270 / .367 / .432, but that production has yet to translate into 24 big league at-bats.