Here are 10 stats from this week's UCL games:

*Eden Hazard missed a chance to open the scoring from the spot for Chelsea against Maccabi Tel Aviv. This made him only the fourth player to have missed three or more penalties in the Champions league since 2006/07. The other three players to have done so are Cristiano Ronaldo, Lionel Messi and Ruud Van Nistelrooy.

Lionel Messi
*After appearing for Barcelona against Roma, Lionel Messi became the youngest player in UCL history to have played in 100 games.

*Despite losing against Dinamo Zagreb, Arsenal have won 76 times in the Champions league -  the most by a team that has not won the competition.

*Dinamo Zagreb's win was also their first win in the competition since September 1999.

*Since his debut in 2004, only Xavi (24)  and Cristiano Ronaldo (23) have registered more assists than Cesc Fabregas (22).

*Roma's defence was excellent against Barcelona. This game was the one in which Barcelona had least shots on target (3) this season.

*Diego Costa scored his first Champions League goal for Chelsea. It was his first goal in the competition since last scoring for Atletico Madrid against Chelsea.

*Theo Walcott became the sixth Arsenal player to have scored 10 or more goals for the club.

*Arsenal's defence was shaky today and this game meant that the Gunners have just kept one clean sheet in their last 11 Champions league away group games.

*Messi's stats in the UCL after his 100 games - 77 goals, 22 assists , 4 trophy wins.