This could be done with a second controller on previous PES games, so I assume is the same this time as well, but the way I did it (and in case you don't have a second controller) was just to set up an exhibition match with me as Barcelona and I chose 'Yorkshire Reds' as my opponent (English second division) as they're only 1.5 stars. Set the difficulty as low as you want, score two own goals at the start of the game so you're 0-2 down. Go on to win the game. Shouldn't be all too much of a challenge on the lower difficulties.