Warburton left Championship club Brentford at the end of last season, and chose to try his luck in Scotland - and so far, he's been a revelation at Ibrox.
The 53-year-old has won 12 of his 14 league games in charge of Rangers, leading the club to the top of the Scottish Championship table with just one defeat to their name.
Promotion is the aim for Rangers, and everything has been looking rosy for Warburton so far, but there may be a spanner in the works for the Gers.
The Telegraph reported over the weekend that Fulham were hoping to make Warburton their new manager having sacked Kit Symons in November.
Warburton tackled the issue on Monday, telling Sky Sports that he is flattered by the speculation but is focused on his task at Rangers - and if you're really nitpicking, it may be said that he didn't completely rule out the possibility of a departure, though that may be splitting hairs.
Now though, with Oddschecker showing that Warburton is the clear favourite for the Fulham job, The Scottish Sun report that Rangers board members are growing increasingly concerned that Warburton could return to London and take the Fulham job.
It's stated that Warburton would not only receive a higher salary from the Cottagers, but would also be handed a larger transfer budget to work with, whilst returning to London could be appealing too.
Regardless of the latest reports, it still seems highly unlikely that Warburton will be leaving Ibrox any time soon, but the alleged interest from Fulham shows just how impressive Rangers have been this season, and they certainly have a top manager on their hands in Warburton. Fans now just have to hope and pray that they can keep hold of him.