In a scary warning for the rest of the NRL, Brisbane Broncos’ forward Sam Thaiday says the premiership leaders still have improvement left in them ahead of the run to the playoffs.

“We’ve still got some improving to do, our last three games leading into the end of the year are going to be very tough games,” he said.

“Even this weekend with the local derby against the Titans is always a tough game and one we could lose if we’re not ready and prepared.

“The big prize at the end of it all is the semi-finals and then hopefully a grand final,

“But if we don’t make sure our mental game is on song and aligned with our physical and football game we’ll get beaten in games by better teams.”