The Cardiff City striker will sign a one-month deal to provide the Whites boss with some vital attacking options, which were sorely missed in Saturday’s 1-1 draw at Millwall.
Jermaine Beckford is still struggling to overcome a hamstring problem – leaving Lukas Jutkiewicz as the only fit senior striker available.
And while the on-loan Boro front man has been a hit since coming in from the Riverside, Freedman believes Mason’s arrival will make the world of difference to his team.
“He’s a young player who has all that enthusiasm and energy and while he is not a superstar – yet – I think he’s very talented,” he said.
“Some of my Under-21s are not quite there yet, so we have had to go and borrow a striker from elsewhere.
“But you saw (against Millwall) that we just need something else in the final third and then we’d be looking at a different kind of game.”
Mason’s last appearance for Wanderers was in the New Year’s Day draw at home to Middlesbrough, although he did start for Cardiff in their FA Cup win at the Reebok a few weeks ago.
He scored just once in eight appearances in his last loan spell but is seen by Freedman as a player who can either slot in alongside Jutkiewicz or play up front alone.
Mason had been due to sign on transfer deadline day – at the same time as Craig Davies was loaned out to Preston North End – but had to pull out of the deal temporarily for personal reasons.
Freedman could also be close to solving another long-standing issue in his side, with Sweden international Mikael Dyerstam arriving for a trial this week.
The 22-year-old has played most of his football as a central defender but it is understood he can also play in either of the full-back positions - which have proved problematic since Kevin McNaughton returned to Cardiff from a loan spell and Marc Tierney broke his leg.
Ex-IFK Gotherburg defender Dyerstam, who has two caps for his country, could even feature in today’s development squad game at Tottenham.