The Baggies have been keeping tabs on the 21-year-old midfielder for quite a while.
England's Bryn Morris in action with Czech Republic's Jakub Jankto
The 21-year-old Czech Republic international midfielder has been linked with the Baggies for a fair while now, but it looks like their hopes of signing the talented youngster will soon be dashed.
Napoli, currently third in Serie A and nine points clear of fourth placed Lazio with six games left to play, are apparently willing to offer Colombia international Duvan Zapata - currently on loan at Udinese with 10 goals in 33 games - as part of the deal.
As well as this, given the state of the league table at present, it will take a catastrophic implosion for Napoli to avoid partaking in next season's Champions League, which is an olive branch that West Brom simply can't offer.
While it remains to be seen whether Udinese would even contemplate Napoli's proposition - and Arsenal's interest, as reports the Daily Star - given Jankto has just signed a new deal is another matter, but it seems unlikely the midfielder will be playing for Tony Pulis any time soon.
West Brom are currently enjoying one of their best seasons in the Premier League, and find themselves in eighth position - just five points away from matching their highest ever points tally in the competition.