"It's great to have him back. Not from his role with us, as good a job as he's done and continues to do, but just from a personal health standpoint," Farrell said. "To see him here today, to see how he's interacting with others, it's a great sign."
Colbrunn is still experiencing some fatigue, lack of focus and headaches as part of the rehab process, but otherwise he feels OK. According to doctors, Colbrunn said, being back with the Red Sox is an important part of his recovery. He'll take things day to day in terms of how much work he does and how much time he spends at the ballpark.
"Once you start feeling better, the quicker you can get back to doing what you normally do, the quicker the recovery will be," Colbrunn said. "You're going to have repercussions -- headaches, mental fatigue, a little lethargic certain days. But the quicker you can get back into your normal life, the better you'll be.
Colbrunn doesn't remember anything from the first two and a half days he spent in that Cleveland hospital. Upon arriving at Progressive Field that Wednesday, Red Sox trainers decided it would be best to take him to the hospital.
According to the Lancet Medical Journal, a subarachnoid brain hemorrhage is a type of stroke that results from bleeding between the brain and its surrounding membrane. It kills one in eight people before they reach the hospital.
"Thank God I was where I was and had the people around me doing what they were doing," said Colbrunn, who doesn't believe there will be any long-term complications from the condition.
Assistant hitting coach Victor Rodriguez filled in for Colbrunn during June. Entering Monday, the Red Sox's offense ranked last in the American League in runs scored and third-to-last in both batting average and OPS. Colbrunn, who joined the Red Sox in 2013, has been keeping up with the club and communicating with the staff almost daily.
"Teams get through it. Hopefully last night was a good sign," Colbrunn said, referencing the Sox's 8-5 win over the Yankees Sunday. "I saw some good [at-bats] last night and a lot of good things happen."
Ian Browne is a reporter for MLB.com. Read his blog, Brownie Points, and follow him on Twitter @IanMBrowne. Steven Petrella is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.