Sobel: McIlroy's new putting stroke looks familiar

playRory McIlroy (-8) is two shots back of Adam Scott for the lead at the WGC-Cadillac Championship after the second round. (1:43)DORAL, Fla. -- Rory McIlroy was worried.

Not scared, not frightened. Just worried.

In the days leading up to this week's WGC-Cadillac Championship, he was changing the grip on his putting stroke, and that got him thinking about the potential backlash.

Let's not confuse the message here: He wasn't worried about how switching to a left-hand-low style would negatively impact his performance. He'd been working on this method in practice sessions for a while and had confidence in his ability to hole more putts in competition.

No, he was worried about inevitable…