 Complete the following phrase:  This was Villarreals fourth ever final in an official knockout tournament, having played previously three in UEFA competitions, all in the UEFA Intertoto Cup, winning it in 2003 and 2004. On the other hand, this was head coach Unai Emerys fifth European final, all in the UEFA Europa League; he won three successive titles with Sevilla in 2014, 2015 and 