MADRID, March 5 — Real Madrid coach Carlo Ancelotti warned his players Tuesday their Champions League last 16 tie against RB Leipzig is not over after taking a slim first leg advantage.

The record 14-time winners scraped a 1-0 lead in Germany ahead of Wednesday’s second leg at the Santiago Bernabeu.

“It’s a big opportunity to continue in a very special competition — we have to be at our best, because the tie is not over yet,” said the Italian.