 Complete the following phrase:  On 2 September 2013, Alderweireld joined Atlético Madrid on a four-year contract for an estimated 7 million 6.16 million transfer fee. He played 12 matches as the club won La Liga; on 11 May, he headed his only goal of the season, an equaliser in a 11 home draw with Málaga in the penultimate round of fixtures, ensuring that Atlético remained in the title race. Alderweireld played the final seven minutes and extra time of the 