
The debate about Barca's dependence on Messi is not a new one, but it resurfaced on Saturday when the Argentine came off the bench to help them salvage a point at Camp Nou as their winless run extended to three games.
Messi, who was introduced in the 55th minute, had already hit the post and seen a free kick cleared off the line when he set up Munir El Haddadi to equalise with five minutes to play.
"We have the squad and the players to be a great team, to be a strong team and not depend on anyone," Messi told BeIn Sports when asked if Barca were too reliant on him.
"This is Barca. We have enough players, we don't need to depend on one. These results have been a shame, but we have to stay calm because it's a long season."
Striker Luis Suarez also said Barca, whose tie with Athletic followed a midweek defeat to Leganes and a draw with Girona, should be able to cope without Messi.
"We have the best player in the world but we can't depend on Leo coming on to sort things out," the Uruguayan said to reporters.
"There are a lot of us here on our own merits, for having shown a lot at other clubs, and it doesn't depend only on Leo coming on. We should have won the game before he came on."
Barca travel to Tottenham in the Champions League on Wednesday, their fourth game in 10 days, and coach Ernesto Valverde said that was the reason for leaving Messi on the bench.
"I looked at the games we had, I thought what could happen and I thought that Messi and [Sergio] Busquets needed to rest, knowing that Wednesday is a big game and we have a big squad," Valverde said in a postgame news conference.
"If we won 2-1 the question wouldn't even exist. I know it's a risky decision [leaving Messi out]. I took that risk and haven't won. It's absolutely my responsibility."
Barca won their first four games in the league this season but have now dropped seven points in just six days, spanning three games.
Most worrying is the fact they have conceded eight goals already but, while admitting there are areas to improve, Messi said there is no need to panic at this stage of the campaign.
"There's no anxiety," he added. "The season's long and it's early days. We're angry about recent results because they weren't what we expected. But we were good in the first half at Leganes and we lost. Today we created enough to win, but we couldn't.
"We have to improve. We're aware we have to be stronger in defence. We're coming from a season when it was difficult to score against us and now it's taking very little for [the opposition] to score. We have to improve and get stronger in defence, that's the most important thing."