Manchester United could face a challenging Champions League playoff against the likes of CSKA Moscow, Lazio, Monaco or Sporting Lisbon in August.

Manchester United, ranked 10th by UEFA, will be the top seeded club in the final qualifying round -- joined by Valencia, Bayer Leverkusen, Shakhtar Donetsk and Ajax. These five clubs cannot face each other, though Shakhtar and Ajax must navigate through the third qualifying round first.