Surely it's the perfect game given our priorities at the moment? You only get match fit by playing. He's been back for a month, played 45 mins in the U21s and has had a couple of sub appearances including 50 odd mins at the weekend. Now seems like the perfect time to ramp things up with his first start.
He needs his body to get used to regular football again. If you want to protect him, take him off after an hour.