Olivier Giroud's spectacular overhead kick gave Chelsea an outstanding victory against Atletico Madrid in the Champions League last 16 first leg in Bucharest.

Giroud's superb moment of improvisation not only delivered the win and a vital away goal but also continued new manager Thomas Tuchel's unbeaten start at Chelsea and put them in pole position to reach the quarter-finals.

In a tie played in Romania instead of Spain because of Covid-19 restrictions, Giroud demonstrated athleticism and technique to send an acrobatic effort beyond Atletico keeper Jan Oblak in the 68th minute. The goal was originally ruled out for offside before a video assistant referee review revealed the ball had bounced off Atletico defender Mario Hermoso.

It was a reward for Chelsea's more progressive style in the face of the usual attritional approach from Diego Simeone's Atletico. They rarely troubled Tuchel's side who comfortably kept the in-form but increasingly frustrated Luis Suarez at bay.

Chelsea have now gone eight matches unbeaten since Tuchel succeeded Frank Lampard while Giroud is emerging as their Champions League talisman after scoring all four goals in the group-phase victory against Sevilla and a last-minute winner away to Rennes.

Tuchel was quick to praise the impact of 34-year-old World Cup winner Giroud and said: "If you see him on a daily basis, you cannot be surprised. He is totally fit, his body is in shape and his physicality is on top level.

"He trains like a 20-year-old, like a 24-year-old. He is a guy who has a good mixture of serious and joy in training. He is always positive and it is a big factor for the group."