Jack Ross says Chris Maguire was 'desperate' to sign for Sunderland after the 29-year-old penned a two-year-deal.
Maguire joins from Bury following their relegation last season.
The former Oxford United and Sheffield Wednesday attacker can play anywhere across the forward line and his fellow Scot says he is determined to make the most of the opportunity.
Ross said: "Chris was desperate to come here, and he will tell you this is the biggest club he’s played for.
“But he’s got a bit about him and as soon as he saw the stadium he said, ‘I’ll have a bit of this’.
“He comes with a belief in his own abilities but a desire to make the most of this opportunity, so I’m pleased he’s aboard because he has proven quality.”
Maguire becomes Ross' third summer signing after deals were completed for Alim Ozturk and Jon McLaughlin.
READ MORE: Jack Ross reveals Jon McLaughlin is ‘safe pair of hands’
Chairman Stewart Donald earlier today urged supporters concerned about Maguire's poor season at Bury to give him a chance and said he would bring 'intensity' to the team.
Donald wrote on twitter: "Hopefully you will give the lad a chance if he signs.
"I watched him for a while at OUFC & if he plays with the same level of intensity as he did for them we will have a player well worth his shirt. Lets see."