Arnold (illness) is questionable for Sunday's Week 3 game against Arizona.
Arnold missed practice both Wednesday and Thursday due to an illness, though he was able to return in a limited capacity Friday. Per Colton Pouncy of The Athletic, Lions coach Dan Campbell said Arnold is "trending the right way" for Sunday's Week 3 contest, so he still has a chance to play. If Arnold can't suit up, though, Kindle Vildor may be asked to step into a starting role.