Jose Mourinho has no shortage of world-class forwards on his hand but juggling them at Manchester United isn't an easy task.A career-threatening injury to Zlatan Ibrahimovic in April necessitated the summer purchase of a striker, with the Special One eventually opting for Romelu Lukaku to the tune of £75 million.The Belgian flew out the blocks at Old Trafford and has maintained steady goal scoring form since Ibrahimovic emerged from his ACL lay-off.Mourinho has deployed Ibrahimovic and Lukaku together during the closing stages of matches before, but with limited success. In fact, the first time the system was used, the latter was forced to play on the right wing.It's fair to say fans weren't convinced by the pair playing together and, as a result, there was a latent skepticism when Mourinho started both strikers for the first time against Burnley.As routine as 'Burnley at home' sounds, Sean Dyche's men have been flying this season and have even flirted with European places in the winter months.And, rather incredibly, they took the lead after just two minutes with Ashley Barnes lashing home - turning attention to the two United forwards. However, the play up front wasn't exactly free-flowing at Old Trafford with Mourinho's system, with Ibrahimovic playing just behind Lukaku, failing to make inroads on the Burnley defenceIt wasn't missed by United fans either, who took to Twitter to voice their concerns over the combination - take a look at the reaction below:

As exciting as United's attack sounds with both players in it, few supporters seem convinced that it actually works.

With two strikers of such class in his team, though, Mourinho will need to find a way to make it work otherwise they can kiss goodbye to their already minuscule title hopes.

Who would you rather start up front - Lukaku, Zlatan or both? Have your say in the comments section below.