Madrid, March 10 -- Atletico Madrid entertains Tottenham in the first-leg of its Champions League last 16 tie with the Spanish side seemingly the favorite against a team in a crisis ofform and results, but Diego Simeone warned his players to stay alert.

The game sees midfielder Conor Gallagher return to Madrid just two months after joining Tottenham in the January transfer window, but Gallagher's fortunes since moving to North London only serve to highlight his side's problems.

The midfielder has still to win while in a Tottenham shirt in the Premier League in eight matches that have seen Tottenham slide into the heart of the Premier League relegation battle, just one point above the bottom three.

Igor Tudor's appointment as Tottenham co...