The Blaugrana winger says that the prolific striker is "fundamental" to the Rojiblancos' game plan but says that Diego Simeone has many other attacking "options"
The 25-year-old forward is a major doubt for Wednesday's crunch quarter-final second leg at the Vicente Calderon, after suffering a hamstring injury in last week's 1-1 draw at Camp Nou.
Pedro acknowledges that Costa is a key component of Diego Simeone's side but he says that the Rojiblancos can cope without their star striker.
“Diego Costa is a very good player and fundamental for them, but if he doesn’t play they have other options," the Barca winger is quoted as saying by his club's official website.
The Blaugrana will go into the game in the Spanish capital still reeling from the news that they have been banned by Fifa from signing any players for the next two transfer windows.
However, Pedro insists that the players have not been distracted by the controversy relating to the movement of players under the age of 18.
“We’re trying to isolate ourselves from what’s going on at the Club," the Spain international stated. "we’re focused on our work.”
Barca were not at their best, though, in Saturday's 3-1 victory over Betis at Camp Nou.
Pedro conceded that the Blaugrana had performed poorly but says that winning was the most important thing, given that victory means that Tata Martino's men remain only a point behind Liga leaders Atletico.
“We lacked intensity and control in the second half," the 26-year-old said of the Betis clash.
"We should have dominated more; we let them back into the game and they made it complicated for us.”
“We’re pleased with the result, and we’re happy to have three more points.”
“We try to win all of our games. We’re aware of what’s on the line both for us and for the teams we face.”