Help!

In the championship and looking to fill a flex position. I’m in between Jamarr Chase and Zeke. Jamarr has been out the last 2 weeks but has practiced the last two days in a row w/ shoulder injury, playing KC, browning also loves Tee Higgins. Zeke is playing well, Zappe seems to love using him and they’re playing buffalo with Stevenson confirmed out so Zeke will be the bell cow.

Help!! Who should I start and why??