Mac Jones

Start Mac Jones if Brock Purdy is out — he’s thrown a lot and had big passing games in relief, and he handled a quick turnaround well. If the 49ers are missing top receivers, he’s facing the Rams, or you already have a safer quarterback, sit him.

His knee is acting up and he's been limited in practice, so he could be slower or even miss the game. Only play him if he's officially active and practicing mostly normally; if he's still limited or listed as questionable and you have a better option, sit him.

Brock Purdy is hurt and Mac Jones played well filling in (three touchdown passes), so start Jones this week — Arizona has struggled against the pass. He’s a solid one-week option or backup in deeper leagues, but don’t expect him to be your long-term starter once Purdy is back.

Mac Jones is likely to start for the injured Brock Purdy and draws a soft matchup against the Saints, so start him if you need a quarterback or play in a two-quarterback league. He doesn't run much so his scoring ceiling is limited, and experts are only somewhat sure about him—bench him in one-quarterback leagues if you have a better option.