Shanahan described the problem as the same soreness Evans had dealt with before kickoff. His postgame comments did not establish a return timetable or a designation for San Francisco's next game.
Evans had entered the game with rib and Achilles injuries after missing practice throughout the week. The 49ers listed him as questionable on their final injury report, then made him active Monday. His availability allowed Purdy to keep one of his established receiving targets on the field despite other absences.
The receiving group was already without Deebo Samuel Sr., who was ruled out with a hamstring injury, and Christian Kirk, who was unavailable because of a calf injury. Malik Turner had been elevated from the practice squad for the game.
Wagoner identified Jordan Watkins, Brandin Cooks, Jacob Cowing and Turner as the healthy receivers remaining after Evans' exit. Evans' three catches had already accounted for 94 yards before he left, including a 54-yard gain on San Francisco's second touchdown drive.