It's been a tough few months for Brentford, losing manager Dean Smith after looking so promising in the early stages.

They were one of the sides which truly looked like Premier League promotion contenders, but the recent form has suggested that a play-off assault is their most likely route to the top flight.

Their match against Sheffield United last night proved they still have the quality in their ranks, but perhaps the upheaval and disruption has derailed their hopes.

The one big fear head coach Thomas Frank must have is around his top stars. They've got some real talent in their ranks, but that won't have escaped a host of bigger clubs. With Smith gone and the club struggling to find form, the vultures might begin to circle.

There's a host of players that would grace another Championship club, with one or two certainly destined for Premier League football one way or another.

Here's two stars Thomas Frank should be concerned about losing in the January window.

Maupay has been scoring their goals all season and when he's out of the side, Brentford look toothless.

That will be a real concern for Frank, because there's every chance he'll be the subject of bids this winter.

If the price is right, he'll move.

That will increase the pressure on the recruitment team to find a replacement, fast.

Konsa has slipped into the first team with ease this season and is sure to attract attention when the window opens.

He's young, will only increase in value and if his current form is anything to go by, he's Premier League ready.