I don’t see any reason, other than injury, why McIlroy can not get back to his best this year.
Despite suffering injury which meant he missed the 2015 Open Championship, he is still ranked in the top 3 golfers in the world. The fact Spieth and Day won major titles last season will mean they’ll be tougher opponents than ever before. However, this may be the challenge McIlroy needs, in order to assert himself back at the top of world golf.
Rory is well in contention to win the Abu Dhabi HSBC Golf Championship, just two shots off the lead in the third round. Spieth seemed to be struggling during the second round and has work to do if he is to claw his way back in to this tournament.