"I think there's still a lot to come from him because we really believe in his qualities, we know what he's capable of doing," United captain Fernandes told Sky Sports.
Ten Hag won two trophies in his two full seasons in charge, but departed with United 14th in the Premier League and without a win in their opening three Europa League games of the campaign.
Moises Caicedo's blistering second-half strike cancelled out a penalty from Bruno Fernandes as Chelsea salvaged a 1-1 draw with Manchester United on Sunday, spoiling United's celebrations in their first Premier League game since the sacking of manager Eric ten Hag.
Manchester United captain Bruno Fernandes is determined to rediscover his goal-scoring touch and said he takes responsibility for struggling to find the back of the net.
Bruno Fernandes was given his marching orders for a high boot with nine minutes remaining and United seemed to be heading to a second defeat in a week after losing their skipper to another red card.
Manchester United captain Bruno Fernandes has signed a new contract that will keep him at the club until June 2027, with the option to extend for another year, the Premier League club said on Wednesday.
Fernandes told reporters that the intense demands of playing at a club like United meant winning was the only thing that mattered.
Ten Hag's side twice trailed to the Premier League's bottom club at Old Trafford before Fernandes came to his beleaguered manager's aid in the second half.
Erik ten Hag admitted Manchester United "got away with it" after his team won an FA Cup semi-final penalty shootout against Coventry on Sunday following an astonishing collapse during the match.
Erik ten Hag criticised Manchester United's lack of killer instinct after Michael Olise's superb stoppage-time free-kick rescued a 1-1 draw for Crystal Palace on Wednesday.
Marcus Rashford scored for a fourth consecutive game as Manchester United eased to a 3-0 win over Bournemouth on Tuesday to strengthen their grip on a Premier League top-four place.
A second-half strike from Bruno Fernandes was enough to give Manchester United a 1-0 win at Southampton in the Premier League on Saturday.
Manchester United midfielder Bruno Fernandes said he was unsure of his teammate Cristiano Ronaldo's future, which has become the subject of intense speculation in recent weeks.