New Manchester United head coach Ruben Amorim says he is the "right man" for the club but will need time to implement his ideas.
The 39-year-old signed a two-and-a-half-year deal earlier this month to replace Erik ten Hag, who was sacked in October.
United are 13th in the Premier League table, seven points above Sunday's opponents Ipswich Town, who are fourth from bottom.
While Amorim recognises the size of the task facing him at Old Trafford, he believes he can turn the club's fortunes around after leaving Sporting.
"I'm a little bit of a dreamer and I believe in myself and I believe in the club," he said during his first news conference as head coach.