Gonzalao Higuain had to be stretchered off in Napoli's draw with Inter on Saturday.
Marco Andreolli leapt to block one of Higuain's efforts late in the match.
There were initial fears that he might not be able to recover in time to appear in the World Cup this summer for Argentina, however, reports coming out of Italy suggest nothing is broken and that it is simply a minor sprain.
"Gonzalo Higuain has a trauma to the right ankle, which will be evaluated over the next few days," the club said in a statement.