Chelsea vs Real Sociedad
Chelsea's Diego Costa (C) celebrates scoring his second goal against Real Sociedad with teammates Andre Schurrle (L) and Ramires (R) during their friendly soccer match at Stamford Bridge in LondonReuters

A brace from Diego Costa saw Chelsea record a comfortable 2-0 win over Real Sociedad, while a late strike from Marouane Fellaini helped Manchester United edge Valencia 2-1 in the two sides' final round of preseason fixtures.

Costa was impressive on his Stamford Bridge debut as he scored two quickfire goals in the opening seven minutes of the game, helping the Blues end their preseason on a good note.

The Blues broke the deadlock in the second minute of the game through the Spain international, who, after receiving a pass from Ramires, slid the ball into the bottom left corner of the net from the edge of the six yard box.

Moments later, Ramires received a very good chance to double the hosts lead when Branislav Ivanovic made a brilliant run forward and pulled the back for the Brazilian. But, the former Benfica midfielder, who only had to tap the ball into an empty net, skied his effort.

Sociedad were, however, not able to hold Chelsea back for long as the hosts soon doubled their lead through Costa. Andre Schurrle took a shy at goal from outside the area, but his curled effort rebounded off the post towards the Spain striker, who made no mistake as he smashed the ball into an empty net.

The hosts got their first real chance in the 20th minute when Esteban Granero let one fly from outside the box. However, the midfielder's swerving effort did not bother Thibaut Courtois as the ball flew wide of the post.

Costa threatened to complete his hat-trick in the closing stages of the first half after he almost collected a long ball from Cesc Fabregas. However, the pass had too much pace and this enabled Enaut Zubikarai to safely collect the ball.

The Blues continued dominating possession in the second half, with Costa missing a good chance to get his hat-trick as he fired wide of the target, following some good work by Eden Hazard.

Towards the end of the game the hosts got another good chance to increase their lead, but Fernando Torres, who came in as a substitute for Costa, failed to get his close-range header on target.

Manchester United vs Valencia
Manchester United's Marouanne Fellaini (C) celebrates after scoring the winning goal against Valencia with his teammates during their friendly soccer match at Old TraffordReuters

Meanwhile, Fellaini grabbed the headlines at Old Trafford by scoring a late winner against Valancia.

Darren Fletcher's early second half effort was cancelled out by Rodrigo in the 71st minute, before Fellaini got the winner in the first minute of injury time.

The first real chance of the game arrived in the 15th minute when Javier Hernandez nearly managed to connect with Juan Mata's freekick. However, before the Mexican could get on the end of Mata's cross, goalkeeper Diego Alves came ahead to clear the danger.

At the half hour mark, the Red Devils were awarded a penalty after Wayne Rooney was brought down inside the box. However, the England striker was unable to utilize the opportunity as his penalty came off the post.

Despite missing the penalty, United continued dominating and they soon created another chance in the closing stages of the first half. But another opportunity went begging for Rooney as the striker failed to control a perfect ball from Fletcher.

The Red Devils finally went ahead in the 49th minute through Fletcher. The visitors failed to clear a corner, and the ball fell to the midfielder, whose powerful effort went in off Alves.

Despite United's dominance, Valencia managed to find the equaliser in the 71st minute through a setpiece. Some poor defending from Herrera and Tom Cleverley allowed Rodrigo to tuck the ball home from close range.

Finally, as the game looked like it was headed for a draw, Fellaini grabbed the winner in the first minute of injury time. Alves made a mistake as he came off his line to collect a long ball from Blackett and this allowed Fellaini to prod the ball into an empty net.

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