StatsBomb founder Ali Elfakharany returns with Siddharth Ramsundar to preview the 2nd legs of the Champions League Quarterfinals. Do Real Madrid have a chance at upsetting Arsenal, and what would that game look like? We also look at the PSG - Aston Villa tie and the odds of Bayern Munich going away and winning in Milan. We also preview the hypothetical semifinal matchup Arsenal v PSG and wonder who Barcelona would rather face between Bayern Munich and Inter Milan.