Juan Mata says his side 's first-half performance against Man United news was the best 45 minutes of the season . Mata returned to United 's starting line-up for first time in seven games . Manchester United raced into 3-0 lead after just 34 minutes . Mata insists his side must remain focused if they are to claim top four spot . CLICK HERE for all the latest Spurs .
Juan Mata says his side 's first-half performance against Spurs was the best 45 minutes of the season . Mata returned to United 's starting line-up for first time in seven games . Manchester United raced into 3-0 lead after just 34 minutes . Mata insists his side must remain focused if they are to claim top four spot . CLICK HERE for all the latest Man United news .