Richard Keys thinks has it out for because of the long-standing feud he has with the striker's dad. Keane, 52, at Haaland, 23, following 0-0 draw with on Sunday, insisting that while the Norwegian was arguably the best finisher on the planet, his general play was "poor" and consistent with a player. He's received some flack for the comment, including , and former Sky Sports presenter Keys, 66, thinks there might be a hidden motivation behind the Irishman's criticism. Keane was notoriously hot-headed as a player, and infamously floored Alf-Inge Haaland with a savage knee-high challenge during a Manchester derby in 2001. The horror tackle, Keane would later admit, was an act of vengeance after he was mocked for falling to the floor after suffering a cruciate ligament injury by Haaland Sr - who wrongly assumed the midfielder had dived - during a match between and Leeds four years prior. "I thought it was a silly thing to say about Erling Haaland, a really thing to say," Keys told beIN SPORTS colleague Andy Gray. "I just thought, are there any leftovers from what happened on the pitch when he assaulted his dad?" Keane initially received a red card and a three-match suspension for the Haaland challenge, but was banned for a further five matches and fined £150,000 after admitting the foul was deliberate in his autobiography, which was published a year later. He wrote: "I'd waited long enough. I f***ing hit him hard. The ball was there (I think). Take that you c***. And don't ever stand over me sneering about fake injuries". It's commonly asserted that the challenge ended Haaland's career, though this isn't actually true. The Norwegian retired after surgery failed to fix a long-term problem with his left knee, while Keane's boot made contact with Haaland's right knee. Haaland Jr has smashed 81 goals in 88 games for City, and is closing in on a second-successive Golden Boot. But the former Dortmund man has also had his fair share of criticism in the past 18 months, with some accusing him of tactically stifling Guardiola's team. That said, his goals powered City to an historic Treble last season – and could very well end up repeating the feat come June. Not bad for a League Two player.