Clint Frazier continues to be sidelined with a concussion, with his time out now at a week and a half. The New York Yankees outfielder has attempted to resume workouts various times since then, but has had to quit due to ongoing headaches. His last attempt at any form of workout activity came on Sunday, when he ran on a treadmill for 20 minutes, reporting no abnormalities. The 23-year-old was called up last season after being acquired from Cleveland in 2016. [...]