Massimiliano Allegri and Carlos Tevez hailed Juventus' professional approach, after the Argentine striker scored the only goal in their Serie A victory over Genoa. (1:20)

Juventus have confirmed that midfielder Claudio Marchisio, who on Friday was ruled out for between six and eight months after tearing ACL in training with Italy, could instead be back in action within days.

Further tests on the the 29-year-old's injured knee revealed that he had not, as initially feared, torn his ACL.

Marchisio was sent back to Turin on Friday after national team doctor Enrico Castellacci diagnosed that he had partially torn ligaments when spraining his knee.

Juventus ordered further tests to be carried out -- and they found that Marchisio could even be back for the Serie A game against Empoli on April 4.

"After returning from international duty on Friday afternoon, Claudio Marchisio underwent medical examinations conducted by Juventus club doctors and Dr Flavio Quaglia," a statement on the club's official website said.

"The 29-year-old then underwent an MRI scan on his right knee this evening. The tests ruled positive, excluding the possibility of a tear to the anterior cruciate ligament.

"Marchisio will now rest, and his condition is to be monitored on a day-to-day basis."

Reports in Italy have suggested that Marchisio could be back in full training after only a few days -- a huge boost to coach Massimiliano Allegri, who is without Paul Pogba for two months and awaiting Andrea Pirlo's comeback from injury.

Meanwhile, Castellacci -- who has become the butt of jokes on the internet -- was quoted by Football Italia as saying: "I spoke to my colleagues in Turin, explained what happened and organised to send the lad straight to the club for further tests.

"Juve gave me the all-clear to make the diagnosis public. That night, I contacted the Juve medics again. Now there are two contrasting test results.

"Naturally, I'd be very happy if the later test was confirmed. These are the facts."