Sunderland were beaten 3-0 by Peterborough United in their most recent outing.
Marcus Maddison has taken a dig at Sunderland boss Jack Ross on Instagram.
Maddison, who has a £2.5 million release clause built into his contract at Peterborough United, has been linked with a move to Sunderland in the Chronicle, but it has never materialised.
And Sunderland were made to regret their decision not to force through a deal for Maddison at the weekend.
The Posh winger scored twice as Darren Ferguson’s men recorded an impressive 3-0 victory over the Black Cats.
Maddison’s first goal was particularly impressive, as he blasted a free kick into the back of the net from fully 30 yards.
Maddison’s celebration was, perhaps, designed to send a message to Sunderland boss Ross, who didn’t sign him.
Indeed, the flamboyant winger, who has been playing as a number 10 this season, joked about Ross in his latest post on social media last night.
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Maddison will be vital to Peterborough’s progress this season, as they look to rival Sunderland for promotion.
The Black Cats had been unbeaten going into the game on Saturday, but they were second best against Posh, as they slipped up for the first time.
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