Freddie Mitchell HATED his playing days with Donovan McNabb ... telling TMZ Sports the Eagles QB was a jealous hater who cost him $40 MILLION!!!
"He hated that people loved me more than him," FredEx says.
Of course, Freddie played with D-Mac for 4 seasons from 2001 to 2004 in Philly ... and while it might have seemed like the guys got along back then -- Freddie tells us that ain't the case.
Mitchell says McNabb was jealous of anybody who got more shine than him on the Eagles -- so much so, Mitchell says the QB straight-up refused to throw him the ball!