Manuel Neuer's agent claims Manchester United are showing an interest in Schalke's highly-rated goalkeeper.
Premier League champions United continue to be linked with a bid for a new keeper as a long-term replacement for Edwin van der Sar.
Dutch veteran Van der Sar is expected to decide this month whether this season will be his last, or if he will continue for another year at Old Trafford.
United boss Sir Alex Ferguson has previously suggested that he will give Van der Sar's current understudies Tomasz Kuszczak and Ben Foster the chance to fight it out for the No.1 jersey.
However, that has not halted the rumours of a potential new signing, with CSKA Moscow shot-stopper Igor Akinfeev mooted as a target.
Neuer has also long been linked with a switch to the Red Devils after previously attracting interest from Schalke's Bundesliga rivals Bayern Munich.
The 23-year-old stated in October that he is happy to stay at Schalke, but the club's financial troubles could lead to the Germany international being sold.
He is rated in the 13million Euros (£11.8m) bracket and his representative Thomas Kroth says United are keen on Neuer.
"We know Manchester United are interested in Neuer," Kroth told Sport Bild.
"Manuel would also like to play with a team that has a better international level."