Jose Callejon warned Napoli that “the matches after the break for international duty are often the most difficult” as they visit Udinese.
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“The matches after the break for international duty are often the most difficult, because you’re tired after long flights and haven’t had much time to train together,” the Spaniard told DAZN.
“Tonight we need to take a big step forward and continue winning to stay up there.”
As Juventus were held 1-1 by Genoa this evening, Napoli have the opportunity to close the gap at the top of the Serie A table to just four points.