The Times says United have so-far refused to cough up Sporting's £68million valuation for the midfielder as Ole Gunnar Solskjaer desperately looks for reinforcements.
And the failed pursuit since the term of the new year has left Fernandes frustrated.
He had expected last Friday's Lisbon derby against Benfica to be his last in a Sporting shirt, but he was back in the side for Tuesday's trip to Braga after negotiations between the two clubs stalled.
The 25-year-old was visibly annoyed as he stormed off the pitch at full-time of the 2-1 defeat, shoving a camera as he made his way down the tunnel.
Reports in Portugal say Sporting are fully blaming United for the move not yet coming to fruition, with the Old Trafford hierarchy not believing Fernandes is worth the price Sporting are demanding.