Barcelona v Atlético Madrid: Champions League quarter-final, first leg

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How good are Barcelona, really? How good is Robert Lewandowski when push comes to shove? And how good are Atlético nearly 15 years into the reign of the sharp-suited Diego Simeone?

There are some recent clues. The seasoned Poland striker Lewandowski had the last word in La Liga on Saturday, his 87th-minute winner added to Marcus Rashford’s opener giving Barça a 2-1 comeback win away from home.