Jose Callejon's goal has given Napoli a 1-0 lead at the halfway stage of their Serie A match against Udinese this afternoon.

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After a quiet opening period, Emmanuel Agyemang-Badu had the first clear sight of goal when he was slipped into the box and saw his effort blocked by Pepe Reina.

Napoli soon created an opening of their own, but Marek Hamsik could not get enough power on his header to seriously trouble Simone Scuffet.

Badu should have given Udinese the lead on the half-hour mark, but after being picked out in the box by Gabriel Silva, he directed his header wide of the post.

The hosts began to see more of the ball as the game progressed and Reina had to be alert to hold onto Bruno Fernandes's swerving long-range effort.

With six minutes of the first half left to play, Callejon fired Napoli ahead with a powerful volley from just inside the box.