Manchester City manager Pep Guardiola said the Champions League poses a tougher challenge than any other competition after his side salvaged a 2-2 draw at Lyon on Tuesday to qualify for the knockout phase.

The Premier League leaders clinched a place in the last 16 for the sixth season in a row as headers from Aymeric Laporte and Sergio Aguero helped City twice recover after falling behind to goals from Maxwel Cornet.