Sky Sports understand the Bundesliga club have set their sights on only one more signing, a left-back, and have a budget or around £6.24m (€7m).
Schalke are keen to make a permanent signing and are not interested in loan deals and are hoping to finalise a deal for a new defender by the weekend.
Need a VPN? Or seeking to switch? Then support Tribal Football by clicking here to sign up with our official partners NordVPN. Not only will you receive the best VPN experience, but also great discounts by signing up via Tribal Football. Thanks for your support!