It is hard to overstate just how big this game is for both teams. Simply put, if Chelsea fail to win again, any chance of the West London club winning the title will have almost completely evaporated, particularly with huge games against Arsenal and Manchester United to come in the next two weeks.
It is equally hard to back Chelsea to win any football match at the moment, particularly against a side scoring goals for fun, as Spurs currently are. For the Blues, Ramires has been nothing short of appalling over the last few weeks, and unless Frank Lampard is mysteriously able to play 90 minutes, immediately recapturing his form of last season, it could be a very long afternoon for the champions.
Even trying to put hyperbole aside, this Tottenham squad has a far superior depth of quality to it, and Carlo Ancelotti will surely be asking himself why he elected to sign so few players over the summer whilst letting many other influential stars leave.
So long as the significance of the moment does not become too much for Spurs, they could win at a canter- a result here would propel them into title consideration. Chelsea fans will have to pray that the do or die nature of the game drives their threadbare squad into action.