Broncos forwards Sam Thaiday and Josh McGuire will both serve one-match suspensions after accepting early guilty pleas for incidents in Friday night's loss to Penrith.

Thaiday was charged with a dangerous throw on Bryce Cartwright, while McGuire was hit with a dangerous contact charge over a tackle on Panthers winger Josh Mansour. 

Both players will miss their side's Round 21 clash with the Roosters, with both now also having 73 carryover points to their name headed into the back end of the season.