opening group game of the 2013–14 UEFA Champions League. At the end of the 2013–14 Super League season, Streller won his seventh league championship with Basel (fifth time in a row). They also reached the final of the 2013–14 Swiss Cup, but were beaten 2–0 by Zürich after extra time. In the 2013–14 Champions League season, Basel finished in the group stage in third position to qualify for Europa League knockout phase and here they advanced as far as the quarter-finals. In their season 2013–14, with Murat Yakin as trainer, Basel played a total of 68 matches (36 Swiss Super League fixtures, six Swiss Cup, ten Champions League and six Europa League and ten test matches). Streler totaled 44 appearances, 25 in the Super League, three in the Cup, eight Champions League and two Europa League appearances, as well six in the test games. He totaled 18 goals in these matches, of which ten were scored in the Super League, one in the Champions League and two in the Europa League. The season 2014–15 was a very successful one for Basel and their captain Marco Streller. The championship was won for the sixth time in a row that season and in the 2014–15 Swiss Cup they reached the final. But for the third season in a row, they finished as runners-up, losing 3–0 to FC Sion in the final. Basel entered the Champions League in the group stage and reached the knockout phase as on 9 December 2014 they managed a 1–1 draw at Anfield against Liverpool. But then Basel then lost to Porto in the Round of 16. Basel played a total of 65 matches (36 Swiss League fixtures, six Swiss Cup, 8 Champions League and 15 test matches). Under trainer Paulo Sousa Streller totaled 40 appearances, 24 League, one Cup, five Champions League, as well 10 in test games. He scored 20 goals in these matches. At the end of the 2014–15 FC Basel season Streller retired from professional football. Between the years 2000 to 2004 and again from 2007 to 2015 Streller played a total of 418 games for Basel scoring a total of 185 goals. 233 of these games were in the Swiss Super League, 22 in the Swiss Cup, 70 were in a UEFA European-competitions (Champions League, UEFA Cup Europa League and UIC) and 93 were friendly games. He scored 111 goals in the domestic