Arsenal vs Borussia Dortmund Live Stream Free Soccer: Watch Online Champions League Football (Start Time)

Arsenal vs Borussia Dortmund in the Champions League takes place on Tuesday night in one of the week's biggest European clashes. The English team has been in great form since their opening season stutters, but they will be up against last season's Champions League losing finalists, who will provide a stern test and indication about where the Gunners stand in this year's contenders for the title. The game will kick off at 2.45 p.m. ET and can be watched online through free live stream (details below).

(Photo: Reuters/Dylan Martinez)Arsenal's Lukas Podolski (C) celebrates with team mate Per Mertesacker (L) and Carl Jenkinson after scoring against Southampton during their English Premier League soccer match at the Emirates Stadium in London September 15, 2012.

Arsenal are currently top of Group F with two wins from two so far, having defeated both Napoli and Marseille prior to today's game. Both Napoli and Dortmund are on three points having won one and lost one each, and French side Marseille are the basement club right now.

The Gunners will know how important not losing is today. Although they will be looking to win this home game, they will know a draw would keep them top of the table and keep them in pole position going into the second half of the group stages.

Arsenal though will be without defensive midfielder Mathieu Flamini who suffered a concussion in their 4-1 win over Norwich on Saturday.

Meanwhile, winger Theo Walcott has had a minor setback in recovering from an abdominal problem and remains sidelined. Others who are out include Yaya Sanogo (back), Lukas Podolski (hamstring), Alex Oxlade-Chamberlain and Abou Diaby (both knee) are out.

Wenger has said, "Flamini is doing well. He has practised normally but we will not play him. There is a five-day rule which we will respect, not to take any chance. It was concussion and the doctor advised us not to play him."

On today's important game, Arsene Wenger has said, "It's not a decider but an important one. It's an 80% game for the qualifying. If we win the game, we know that if we win the other home game we are there."

The game will kick off at 2.45 p.m. ET and can be watched online through free live stream by clicking here.