Jose Mourinho certainly enjoys pitting his wits against Arsene Wenger especially as he has yet to come out on the losing side when Chelsea have played Arsenal.
Their last meeting saw Jose Mourinho roll a blue double decker bus in front of Petr Cech at the Emirates and earned a 0 - 0 draw which ended up suiting Chelsea more than the Gunners.
But as the two sides prepare to do battle this Saturday at Stamford Bridge, only four points separate them.
If Arsenal win the lunchtime kick off, they will be well placed to really challenge for the title entering the final stretch but a victory for Chelsea will be a major blow to the Gunners' chances.
But what can Wenger change to finally get one over on Mourinho?
Penetrating Chelsea's central area was a problem for Arsenal in December and this Squawka graphic shows how the Blues forced Arsenal wide...
Arsenal are among the bottom five Premier League teams for attempted crosses per game with 19 per game. But against Chelsea they attempted 25 crosses. However just four reached their target with one of those chances spurned by Olivier Giroud...
Unfortunately for the Gunners, a Chelsea side who have tightened up defensively since the early stages of the season are among the top six clubs when it comes to the fewest goals conceded in the air. They also won 27 of the 46 headed duels against Arsenal. Forcing mistakes will also be problematic given that Chelsea are ranked second when it comes to making the fewest defensive errors in the Premier League.
Encouraging runners from deep to make late runs into the box could be something Wenger may look into but that might be exactly what Mourinho wants.
If Arsenal over-commit, this counter-attacking Mourinho side will look to pick them off on the break with the pace of Eden Hazard, and whichever striker the Portuguese manager chooses to field.
Certainly Wenger will want more support for Giroud centrally and perhaps Lukas Podolski and his hammer of a left foot could be a potent weapon if balls break loose in inside left channel.
Injuries and suspensions will certainly dictate both manager's team sheets. Will Wenger go for the security of a Flamini-Arteta midfield base or will he field the more box-to-box Alex Oxlade-Chamberlain in a central role in which he excelled against Bayern Munich?
And with Ramires and Willian suspended will Mourinho go more 4-2-3-1 with Oscar in the hole?
We'll have to wait and see but Wenger will definitely be looking at a way to prevent Arsenal getting shunted to the margins both on the pitch and in the title race.
