 Complete the following phrase:  On 2 September 2019, Areola returned to Spain when he joined Real Madrid on a season-long loan as part of a deal that saw Keylor Navas move in the opposite direction to PSG. He made his debut for the club on 25 September, starting in a 20 league win over Osasuna. However, he was predomitly used as a back-up option to first-choice goalkeeper Thibaut Courtois for the remainder of the campaign and made just nine appearances across all competitions, including four appearances during the league season, as Real won the 