Tottenham Hotspur reportedly could be set to cause West Ham United a very big problem this summer. Both West Ham and Tottenham have an incredibly busy summer transfer window lying ahead of them. Incoming Hammers boss Julen Lopetegui desperately needs to sign a top-class striker, and that is said to be his main priority. Meanwhile, Tottenham boss Ange Postecoglou is definitely in the same boat as his Spanish counterpart. Now it seems like both London clubs could be chasing the same player, although Tottenham could well be in the driving seat. Spurs are said to be prioritising talks to sign Sant…