Goals from Christian Pulisic, Felix Passlack and the returning Raphael Guerreiro saw the Bundesliga outfit to a 3-0 win
Borussia Dortmund concluded their mid-season break in Marbella with a routine 3-0 win over Standard Liege on Thursday.
Thomas Tuchel's men registered a convincing 4-1 victory against PSV in Cadiz on Saturday and they picked up where they left off at the Estadio Municipal.
Teenage USA international Christian Pulisic opened the scoring after 15 minutes, latching on to a superb pass from Lukasz Piszczek and dinking a finish over Standard goalkeeper Guillaume Hubert.
Sokratis Papastathopoulos had earlier headed against the crossbar but the Dortmund centre-back was forced off with an ankle knock before the half hour.