I saw stuff that I didn’t even know,” Patrick Mahomes said, “and I thought I knew everything about the Kansas City Chiefs.”

The Arizona Cardinals have their first preseason action this weekend. They take on the Kansas City Chiefs Saturday from State Farm Stadium, kicking off at 8 p.m. ET (5 p.m. Arizona time). The Cardinals have closed out training camp in Glendale and now move to a more normal weekly schedule.

ST. JOSEPH, Mo. — The Kansas City Chiefs returned to training camp practice on a sunny Tuesday morning on Missouri Western’s campus, just four days ahead of Saturday’s preseason opener against the Arizona Cardinals. Here’s a look at six things we’ve learned about the roster through 12 practices.