Middlesborough

Ralf Rangnick’s side crashed out after Anthony Elanga blazed his spot-kick over the bar in a nerve-jangling shootout where the first 15 penalties all were successfully converted.

Jadon Sancho had put United ahead in the first half, but Matt Crooks’ controversial equaliser after the interval set the stage for Middlesbrough’s memorable upset.

9,500 Middlesbrough fans travelled to Old Trafford for the clash, and witnessed their side survive the first half by the skin of their teeth to only go one goal down by the break.

Steve Agnew's side knew that a defeat at Stamford Bridge would result in their return to the Championship after just one season in the top flight and they proved unable to avoid that fate, marking the fourth time they have been demoted from the Premier League.

First-half goals from Diego Costa and Marcos Alonso left Middlesbrough with a huge task and there was to be no miraculous fightback, Nemanja Matic extending the league leaders' advantage after the break.

Diego Costa gave the hosts the lead after 23 minutes at Stamford Bridge, recording his 20th league goal of the season.

Marcos Alonso soon doubled Chelsea's advantage and Nemanja Matic completed the scoring after the interval to wrap up a comprehensive victory, relegating Middlesbrough in the process.

Chelsea will now be crowned champions for the second time in three seasons if they win at West Brom on Friday after picking up a maximum three points for the 15th time at home this season.