Rory McIlroy continues to struggle for consistency at the WGC Cadilac Championship.

The World No 1 started his second round with back-to-back birdies, before then carding consecutive bogeys in Florida.

He is now back to level par for his round and 1-over tournament, which is the same score as Shane Lowry, who has dropped two shots today.

Graeme McDowell has also dropped a shot to slip to 2-over.

First-round leader JB Holmes remains the out-right leader by three shots on 9-under.