Un-less DL has things already in place with certain players and looking to tie certain transfers up within the next few days (un-likely) then I can't see us being that serious about looking to sign the likes of Lallana, Lukaku etc or
any World Cup bound player. Purely because DL will not be prepared to pay the potential inflated World Cup price tag.
I think we genuinely have no interest in Lallana at the price he's been cited at. Our ITK has suggested the only Saints' players we're interested in are Lovren and Rodriguez, and the latter only if he's very cheap. Multiple Saints ITK'ers have also said we've expressed no interest in him, so I'm inclined to believe it's likely true.
I think he's a good player and I'd have loved for us to have found a way, but I have to agree with many that at 25 mil alone that's overpriced and especially since they're holding out for yet more.