The £89million midfielder is still searching for his best form since his world-record summer move from Juventus.
The 23-year-old picks up wages of £275,000-a-week at Old Trafford.
Pogba, however, is still behind the likes of Wayne Rooney and Zlatan Ibrahimovic, who both earn £300,000-a-week.
But sources for SiaS have been told the France starlet was also handed a lucrative bonus structure when he agreed to snub Real Madrid for the Red Devils.
United are desperate to return to Europe's elite competition, next term and will see their £75million-a-year kit deal with Adidas dramatically cut if they fall short for a second successive year.
It's understood Pogba, who is also personally sponsored by the German sportswear firm, will be in the money if Jose Mourinho's team secure a top-four Premier League finish.