Patrick van Aanholt wears cutting edge face mask as he trains with Crystal Palace in Morocco

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Crystal Palace defender Patrick van Aanholt has been putting in the hard yards during the club's training camp in Morocco.

Van Aanholt has been a key figure in the Eagles' recent revival under Sam Allardyce, which has seen the relegation threatened side win three out of their last four league games.

And the former Chelsea left-back is not taking his foot off the pedal as he looks to secure Palace's top flight status.

Crystal Palace star Patrick van Aanholt puts in a few miles on the exercise bike during the team's training camp in Morocco, while wearing an ultra-modern face mask

Wilfried Zaha, Jason Puncheon, Patrick van Aanholt, Fraizer Campbell, Zeki Fryers and Sullay Kaikai pose for a picture in the Moroccan sun during their warm weather training camp

Van Aanholt had his ankle strapped up as he recovers from an injury suffered at the weekend

Van Aanholt has posted a photograph of himself during a gruelling exercise bike workout whilst wearing an ultra-modern face mask, made by UAE-based firm Altitude Mask (altitude-mask.com).

The piece of kit, which replicates high resistance conditions, has been used by a host of high-profile sport stars, including Zlatan Ibrahimovic, as they look for a vital edge in their training regimes.

Palace do not have a fixture this weekend and Allardyce has taken the opportunity to take his squad abroad for some warm weather training.

Van Aanholt was carried off on a stretcher during Palace's 2-0 win at West Bromwich on Saturday but appears to have suffered no lasting effects. 

Van Aanholt's injury was not as bad as first feared after he was left in agony at the Hawthorns

Zaha held the left back's hand as he was taken from the pitch on a stretcher in the second half