Manchester City’s João Cancelo battles with  Borussia Mönchengladbach’s Lars Stindl  during the Champions League  round of 16, first-leg match at Puskas Arena in Budapest. Photograph:  PA Wire via DPA

Borussia Mönchengladbach 0 Manchester City 2 Pep Guardiola speaks of how vital it is to “arrive” in optimum form when the Champions League knock-out (...)