Belgium international Hazard impressed before his withdrawal 21 minutes from time in the home Champions League clash, as Madrid went on to give up a two-goal lead in the final nine minutes.
Hazard medical report.#RealMadrid— Real Madrid C.F. 🇬🇧🇺🇸 (@realmadriden) November 27, 2019
Madrid coach Zinedine Zidane acknowledged the problem was a worry, claiming it was "more than a simple blow".
But the club confirmed on Wednesday that the winger only suffered bruising rather than ligament damage.
"After the tests performed on our player Eden Hazard by the Real Madrid medical services, he has been diagnosed with an external perimalleolar contusion [bruise] on his right leg," a statement read.
According to media reports, Hazard is expected to be out for around 10 days, meaning there should be minimal risk of him missing the Clasico in Madrid's penultimate LaLiga match of 2019.