Clint Frazier was in “positive spirits” after biking for 20 minutes on Sunday. Frazier, who suffered a concussion on Feb. 24 and has had numerous setbacks in his recovery, will resume activity on Tuesday after a day off today. Frazier met briefly with a doctor, as expected, and “went over the same things that we went through last time.” Frazier hasn’t done any sort of hitting in four days. The last time he felt anything was after a stint on the treadmill. “I’m feeling very positive today,” he said. “The last couple days with no activities has helped me calm down. I don’t have a headache right now, which is good for me. I literally just got off the treadmill (without issue). It’s been in and out. Some days I have (headaches), some days I don’t. It’s environment driven.” Frazier is disappointed because he hasn’t been able to fight for a spot on the roster while he’s been out. “It’s not fun all around,” Frazier said. “I’ve never had (a concussion) before, and I have big, big hopes and dreams this year. It’s hard to sit back and not watch those things come to reality right now. It’s just a matter of taking my time and hoping I can get back out there at the end of spring training and make a splash.”