West Brom have also been interested in Sanchez, but look to have been beaten to the punch by West Ham.
West Ham have added the likes of Felipe Anderson, Andriy Yarmolenko and Ryan Fredericks to give them a new-look starting XI that could be a real success under Pellegrini.
With further midfield signings on the agenda, West Ham could be tempted to cash in.
Sanchez spent second half of last season on loan at Espanyol and his contract with Fiorentina expires at the end of next season.
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Steve Bruce's side are keen on signing Snodgrass on a permanent basis and, although the Guardian states West Ham have no interest in a sale, the promotion hopefuls could lodge a cheeky bid before this afternoon's deadline. After spending six years there, he would sign for Spanish team Elche but he only lasted a year at that side before signing for Aston Villa.
Now, the same report is claiming that Sporting Lisbon are set to sign Perez in a cut price £4.4m deal before the close of the summer transfer window this month.