The Pella Knights are holding open tryouts this weekend. The semi-professional football team moved to Pella this year, and will play on Saturday nights. Pella Knights Head Coach Steve Miller tells KNIA/KRLS News that they invite everyone interested to come try out. The open tryouts are Sunday at the PAC Center on the William Penn Campus in Oskaloosa from 5:00 to 9:00. Participants must pay a $20 registration fee, and be 18 or older.