He 's had to deal with one injury after another , from a serious concussion to a groin strain to hip surgery .
It 's been a grind for the 35 - year - old Roberts over the past few years .
Roberts 's had to deal with one injury after another , from a serious concussion to a groin strain to hip surgery .
It 's been a grind for the 35 - year - old Roberts over the past few years .