Sportsmail reported how a furious Ten Haag made his team cover the exact distance Brentford overtook his side as the Bees beat United 4-0 in Saturday’s final game – the shock result of the Premier League weekend. The Dutchman pulled out of a scheduled day out for the Red Devils to unleash his fury on the team, but according to Dr Rajpal Brar, he has risked doing more harm than good to his players. Initially responding to the reports on Twitter, Brar said: “If true, I guess the sports science and physics staff got involved. That’s how you drive players into the red zone and/or they get injured.” The “red zone” is when an athlete reaches 90-100 percent of their maximum heart rate, which means they are also at maximum effort and exertion. And later, speaking to Sportsmail, Dr Barr expanded on his thoughts: “In terms of rest/recovery and risk of injury – think of your body as a bucket. “Activity adds water to the bucket, while rest and recovery take it away. With the wrong balance of the two, the bucket will overflow (or on the other hand, be dry, which you also don’t want). Erik ten Hag ruled out Manchester United’s planned rest after 4-0 defeat by Brentford Ten Haag made United team run 13.8km – how much Brentford outscored in defeat Responding to the reports, Dr Rajpal Brar said that Ten Hag has risked injuring players Dr Barr said Ten Haag’s punishment could catch up to the players in later games “Playing in a high-level soccer match adds significantly to that bucket, and adding another day of running the next day — there’s a reason it was a scheduled rest day — can lead to that overflow and potential injury risk. Maybe not during the session but in the next matches. The “red zone” is essentially that state of high fatigue and increased risk of injury. The activity and physical/mental state of elite soccer players is closely monitored by sports science and medical teams for a reason and their training schedules, lineup decisions, etc. they adjust around them. Ten Haag arrived early at United’s Carrington training base on Sunday to put the United squad through the ringer before launching an inquiry into the Brentford result. It was 30C in Manchester on Sunday – 86F. But Ten Hag must find answers to his side’s awful play, and quickly. United face fierce rivals Liverpool next Monday, August 22 at Old Trafford and Jurgen Klopp’s side beat United 5-0 there last season. There have been concerns about United’s training routine in recent weeks and those concerns were exacerbated by Saturday’s emphatic defeat that leaves United bottom of the Premier League table. There are also fears that Cristiano Ronaldo’s attitude is having a negative impact. Although Ronaldo is said to be training well, he exchanged words with Ten Hague’s No.2 Steve McClaren at the final whistle after he refused to applaud United’s traveling fans in Brentford. There is a feeling that his mood is having a negative effect on the dressing room. However, United rejected suggestions that Ronaldo’s contract could be voided and reiterated that he remains at the club. It comes after the season began with a 2-1 defeat by Brighton at Old Trafford and Ten Haag is now the first United manager in a century to lose his first two games. He was visibly furious with his team’s performance on Saturday night. “They are trash and they are poor. We need higher standards than that, that’s clear,” he told BeIN Sports. “We have to deliver and we didn’t. We have to change, that much is clear. 35 minutes you concede four goals. It’s not possible. The team must take responsibility. I feel so sorry for the fans. We let them down.’ There are concerns about Cristiano Ronaldo’s attitude and its impact on the United dressing room Ten Hag has missed his first two games as United manager and it doesn’t get any easier with Liverpool next Club chiefs have so far failed in their efforts to land their new manager the players he requested during the summer transfer window, with the hunt for Frenkie de Jong continuing. United legend Rio Ferdinand defended Ten Haag on Saturday night, but said United’s pursuit of De Jong was going begging. He said: “I’m not sorry for the players, I’m sorry for Ten Hag,” said Ferdinand. “He comes under false pretenses. Expected new transfers are coming. “He’s probably sitting there thinking, ‘I’ve been sold a dummy here. I didn’t know I was going to get into this.”The confidence, I know, would be low. “He knew that but he thought ‘I’ll be able to do it again’ but obviously the players are not up to the standard required. So simple.’ As for his pursuit of De Jong, Ferdinand said: “We’re almost hunting for this player. “For three months in the transfer window, with our caps out begging, ‘please come to us, please come to us’. United are last in the Premier League standings and are already in crisis after two matches “They were walking behind him, begging him (de Jong), ‘please turn and look at us, please turn and look at us.’ And he looks around and says “not for me”. “And we’re still there. “Give us a chance.” How do we put ourselves in this position? How do we let ourselves get into such a position? “Do you think Klopp or Pep or Sir Alex or Jose would go after a player like him? They wouldn’t do that!’