The 33-year-old met up with Anelka, whose future remains unclear after he was sacked by West Bromwich Albion following his controversial 'quenelle' gesture, at the weekend.
Haye tweeted a number of photos with the pair, two of which appeared to show Pires and Anelka 'squaring up' to him.
Haye wrote, "bumped into @PiresRobert7 and he proper squared up to me..... He's lucky I'm injured....," before tweeting, "what is it with these footballers wanting to fight me.....!?!? @AnelkaOfficiel just shaped up in front of me...."
The British boxer, who has been rumoured to be planning a comeback to the ring, went on to say that he had a "great night" with the pair.