Lionel Messi Warns Barcelona Ahead of Bayern 2nd Leg, Explains Goal Celebration

Lionel Messi produced two excellent goals to lead Barcelona beyond Bayern Munich in a 3-0 drubbing on Wednesday night, but the Argentinian star doesn't believe the Catalan club can afford to be complacent ahead of the Champions League semi-final return trip to Germany.

Barca's destruction of the German side began in the final 20 minutes, with Messi producing two sublime strikes out of nothing, the second of which left Bayern defender Jerome Boateng tumbling to the ground in a bid to stop his man. However, Messi is keen to focus on starting from zero during the return tie, telling UEFA television (h/t AS):

"

We had the luck to get a goal, the first, and after the other two followed very close together and we ended up with a very good result for the second leg, which is what we wanted.

[..] Germany is a very difficult place to go. We got a very good result but we must go further and not be complacent.

"

Emilio Morenatti/Associated Press

Messi's strikes, and indeed Neymar's finish to round off the scoring, were tweeted by World Soccer Talk and Copa90:

"

This is the second Messi goal. Goosebumps when this one went in... https://t.co/NdM247GnIw #Messi #FCBFCB

— Copa90 (@Copa90) May 6, 2015"

"

Here's the #Neymar goal for 3-0... sublime composure. #FCBFCB https://t.co/BoaWnqWqwF

— Copa90 (@Copa90) May 6, 2015"

Former Barcelona strikers Patrick Kluivert and Gary Lineker tweeted their thoughts on Messi's performance:

Thierry Henry, Messi's former team-mate, also made his feelings known during Sky Sports' broadcast, per Audioboom:

A huge outpouring of joy followed Messi's first goal in what was an extremely frantic match. He suggested the importance of the strike made him celebrate more emotionally than usual, per AS:  "It was a joy for what the goal meant. We had not scored and it was a big goal in the tie."

Manu Fernandez/Associated Press

Bayern overturned a 3-1 first-leg deficit against Porto in the quarter-final, winning 6-1 in the second fixture to progress via a 7-4 aggregate scoreline. As such, goalkeeper Manuel Neuer believes Pep Guardiola's men still have a chance, reported by Rory Keane of the MailOnline [sic]: 

"We saw against Porto that always something is possible," said Neuer. "But we're now playing against another team. We have seen today that we did not get many chances, but say never never. We must try to believe."

Shaun Botterill/Getty Images

Few will back Bayern to do the unthinkable, particularly if Barca net an away goal.

Just a single strike would leave the German side needing five to progress, a seemingly impossible task considering Barca haven't conceded more than two in any match so far this year, per Soccerway. The last time Luis Enrique's men failed to score, incidentally, was during the Feb. 21 home defeat to Malaga.

Both Messi and his Barcelona team-mates are beginning to replicate the kind of form that thrust the club to tremendous success under Guardiola. The Spanish boss bravely set his Bayern side up with three at the back on Wednesday, but he was quickly forced to change. He sent numbers forward when Messi opened the scoring, but he was ultimately punished.

While Messi is right to remind his colleagues that complacency cannot set in, Bayern will need to produce one of the Champions League's all-time greatest comebacks to progress to the Berlin final.