Pep Guardiola warns Jack Grealish over "emotions" after clashing with Atletico Madrid ace

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Pep Guardiola insisted his Manchester City players must "control our emotions" after Jack Grealish was caught up in some heated scenes during the Champions League clash with Atletico Madrid.

City emerged 1-0 winners after a close-run battle at the Etihad on Tuesday night, with Kevin de Bruyne's 70th minute strike proving to be the difference. Atletico dug in and gave away very little in true Diego Simeone style, with the small cushion setting up an exciting second leg.

Tempers flared on the pitch as the game wore on, and the introduction of the daring Grealish certainly added more spice to the occasion. The England international managed to win five fouls after being introduced midway through the second half.

Grealish's trademark ability to draw fouls clearly incensed the Atletico players, with Sime Vrsaljko flicking Grealish's hair in frustration, while Stefan Savic taunted the winger at one stage, riling up Grealish even more and prompting a minor confrontation at full-time.

The scenes were clearly not to Guardiola's liking, who warned Grealish that the intensity would be even higher in a weeks time at the Metropolitano Stadium. He said: "We have to control our emotions and do what we have to do [in Madrid]. There will be a referee there in an incredible