Why is ian poulter using his iron to putt during this weeks golf tounement?

Question

Why is ian poulter using his iron to putt during this weeks golf tounement?

Answer 1

Poulter tapped hit putter on the pavement approaching the 15th tee during the third round today at the WGC-CA Championship at Doral. The weight in the back of the putter came loose, thus deeming it damaged and non-conforming. He'll have a legal flatstick in the bag on Sunday.

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Answer 2

It wasn't this week, it was just today.  Somehow the loft of his putter changed during the round.  I don't know why, but it is against the rules to play with altered equipment during a round so he could not use it anymore.