The Champions League resumes on Tuesday as 16 teams look to another step towards Madrid in June. After all four Premier League clubs advanced to the knockout stages, chances of the competition having English representation deep into the tournament is high. But standing in their way will be 12 other teams from six different countries. The likes of Real Madrid and Barcelona are obvious favourites, but dark horses such as Lyon, Atletico Madrid and Borussia Dortmund also lurk. We have compiled the runners and riders for Europe’s premier competition – and dissected the tactical battles that await Manchester United and Manchester City if they’re to lift the trophy in the Spanish capital. Atletico Madrid After winning the Europa League last season, Diego Simeone’s team have returned to the Champions League with the pedigree of European champions. His team are renowned for their hard-working and efficient defensive style, but it’s worth noting that the talent in the squad is almost unrivalled. Players such as Antoine Griezmann, Koke, Saul, Jan Oblak, Thomas Lemar and Diego Godin are included to name but a few, and the former finalists will ultimately pose a tricky tactical threat for whoever they face. The Spanish side have…