Real Madrid are watching Bayer Leverkusen goalkeeper Bernd Leno.
Real are in the market for a new keeper, with Keylor Navas expected to leave at the end of this season.
Manchester United No1 David de Gea and Chelsea's Thibaut Courtois are Real's priorities.
However, Okdiario says Bayer keeper Leno is also being monitored by Real scouts this term.
The 24 year-old, Germany's reserve keeper behind Bayern Munich's Manuel Neuer, would represent a much cheaper option than the star Premier League pair.