first_imgSANTA CLARA — And the first 49ers quarterback hurt at an injury-marred training camp is … not Jimmy Garoppolo.C.J. Beathard watched Tuesday’s practice with a wrap — possibly a soft cast — on his right thumb, which he banged into a helmet on his final play of Saturday night’s exhibition opener.A 49ers spokesman called it a “sore” thumb, and although there was no metion of it being a long-term issue, this appears a significant setback in Beathard’s bid to beat out Nick Mullens as Garoppolo’s …last_img