The 31-year-old was recently linked with a return to La Liga after a solid campaign with Napoli.
"Right now I'm only thinking of La Roja (Spain's national team)," Reina said to Spanish radio station Cadena Ser.
"With regards to a new club, I will first have to speak to Liverpool.
"My season on loan at Napoli has been very positive and I thank the Napoli people and the club.
"With Barcelona there is nothing, they have just acquired (German goalkeeper) Marc-Andre Ter Stegen, hence they have that role covered.
"I haven't had any contact either with Atletico Madrid, I think they will do all they can to keep (Thibaut) Courtois.
"I will return to be a Liverpool player but I think I'm not in the coaching plans."
Reds manager Brendan Rodgers has indicated he does not see a future for Reina at Anfield.
The Spaniard made 30 league appearances to help Napoli finish third in Serie A and qualify for the Champions League.
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