Juventus sent Fabio Paratici to watch Giuseppe Rossi and Bruno Soriano in last night's Napoli-Villarreal clash.
Paratici, assistant to Juventus director general Beppe Marotta, was present at the San Paolo for the 0-0 Europa League tie.
Italian international Rossi has been on the Juve radar for some time now and it's believed that the Turn giants had a bid rejected last summer.
Rossi, contracted to Villarreal until 2015, wouldn't come cheap though given that his Spanish club turned down a £35m offer from Tottenham in January.
As for Soriano, the 26-year-old is being suggested as a possible replacement for Momo Sissoko next season.
The Mali international is expected to leave Turin after failing to break into the first team plans of boss Gigi Del Neri.
However, like Rossi, Soriano is valued highly by the Liga club who it is believed would want over €15m for the player.