Real Madrid boss Carlo Ancelotti has insisted that his side will need to be wary of Atletico Madrid attacker Antoine Griezmann in Wednesday's Champions League quarter-final second leg.

Griezmann joined Atletico from Real Sociedad last summer and has netted 23 goals in 47 games this season, including 20 in La Liga.

Ancelotti, who has a host of injury problems ahead of the match, has branded the Frenchman "very dangerous".

"He's had a great season and he's still doing well. We have to watch him closely because he's very dangerous," Ancelotti has been quoted by AS.

Griezmann has scored twice in the Champions League this season.