One day , Justin hit putts with both his eyes open and closed , checking his ZENIO numbers to see how similar they were .
We watched Justin Rose warm up with Dr. Jaekel each day using ZENIO on the practice green before Justin 's rounds .
One day , Justin hit putts with both Justin Rose 's eyes open and closed , checking his ZENIO numbers to see how similar they were .
We watched Justin Rose warm up with Dr. Jaekel each day using ZENIO on the practice green before Justin 's rounds .