PITTSBURGH -- After taking a 105 mph line drive off the back of his head on Tuesday night, Pirates rookie Jameson Taillon reported no concussion symptoms or soreness.
The 24-year-old right-hander will remain under Major League Baseball's concussion protocol for another day, head athletic trainer Todd Tomczyk said. There is a 48-hour time frame following the incident during which the Pirates can place Taillon on the seven-day concussion disabled list, if necessary.
"Surprisingly good. We're being very cautious with it," Taillon said. "Normal day after. ... I'm feeling pretty comfortable with everything. I thought they handled it really well."
Taillon stayed in the game and pitched six innings. Tomczyk said Taillon responded well to the tests they administered on the field immediately after the ball caromed off his head.
"I was looking for reasons [to take him out]," Tomczyk said. "But he continued to show that there was no serious risk."
Taillon did not undergo X-rays. Tomczyk and Dr. Edward Snell, a team physician, checked on Taillon after each half-inning Tuesday night and continued to evaluate him on Wednesday.
"He continued to show us what we needed to [see]," Tomczyk said. "At the end of the day, Jameson is going to be fine.
"We still are monitoring. But again, the most important thing is that Jameson is checking out very well."
Stewart hoping to avoid surgery
Catcher Chris Stewart (left knee) has begun light baseball activities -- hitting and playing catch -- but has not yet run or attempted to squat behind the plate. He has responded well to his prescribed rest and hopes to start catching later this week.
"If everything goes well, then we're going to start ramping that up, start squatting, catching and see my reaction to that," Stewart said. "We'll have a determination pretty soon, one way or the other, which way the knee's going to go and if we can progress to the next level."
Stewart described the injury as a "kind of arthritis feeling" and "basically stuff you'd expect to see in a 34-year-old catcher's knee." If his knee won't hold up, he will need to consider surgery.
"We're trying to address it at the end of my career. Hopefully we can hold it off that long," Stewart said. "They don't really know until they get in there and see how bad the damage is. ... We're trying to avoid that possibility at all costs because we don't know what would happen if they got in there and had to do stuff."
Vogelsong continues rehab
Right-hander Ryan Vogelsong, building up his arm after undergoing surgery to repair multiple facial fractures, left his third Minor League rehab start early due to neck tightness, according to Piratesprospects.com. Vogelsong. who was struck in the face by a pitch on May 23, allowed two runs on four hits while striking out two over four innings for Triple-A Indianapolis.
Vogelsong, eligible to come off the 60-day disabled list on Saturday, threw 60 pitches on Wednesday after throwing 75 pitches over six innings in his second start on Friday. According to the Piratesprospects.com report from Indianapolis, Vogelsong will travel back to Pittsburgh to have his neck examined on Thursday.
Adam Berry has covered the Pirates for MLB.com since 2015. Follow him on Twitter at @adamdberry. This story was not subject to the approval of Major League Baseball or its clubs.