Barcelona vs Celtic Live Stream Football: Watch Online Champions League Soccer (2.45PM ET)

Barcelona vs Celtic takes place in the Champions League on Tuesday, with the Scottish champions given the task of traveling to the Nou Camp and trying to overturn Lionel Messi and the world's best team, to come away with something from this game. The match is set to kick off at 2.45 p.m. ET and can be watched online through live stream (details below).

(Photo: Reuters/Gustau Nacarino)Barcelona's Lionel Messi (C) controls the ball against Valencia's Gago during their Spanish first division soccer match against Valencia at Nou Camp stadium in Barcelona September 2, 2012.

Celtic won their very first away match in the Champions League a few weeks back against Spartak Moscow, however, they may settle for a draw today away to the Spanish giants.

Barcelona striker Lionel Messi is on fire at the moment, scoring a hat-trick against Deportivo La Coruna at the weekend, and if Celtic are not 100 percent on their game he is likely to tear their defense apart.

Barcelona sit top of Group G after two games, beating Spartak Moscow 3-2 at home, before winning at Benfica 2-0. Celtic meanwhile will be happy with their progress so far, claiming four points from their opening two games, which leaves them second in the table at the moment. The Scottish team could only manage a 0-0 draw with Benfica in their first game, but won a dramatic game against Spartak Moscow 3-2 in game 2.

These two teams will now face off in back to back home and away games, and Celtic will be hoping to gain at least a point from the two games. If they can manage that they will place themselves in a good position for their final two matches to try and qualify for the knock out stages.

Although Celtic will for sure get people behind the ball at the Nou Camp, and perhaps place two or three players on Messi, they will also have seen how disorganized Barcelona's defense has been at times this season. That will give them hope - if they can just keep Barcelona out, or limit them to a single goal, the Scots may be able to sneak a goal or two on the counter attack and claim a vital point or even an unthinkable win.

It is vital for Celtic that they do not concede an early goal, or it could turn into a blood bath.

Barcelona vs Celtic kicks off at 2.45 p.m. ET and can be watched online through live stream by clicking here.