Bayer Leverkusen striker Stefan Kiessling will earn a place in Germany's squad for next year's World Cup if he continues to prove his goalscoring ability next season, according to his club's director of sport Rudi Voller.
Kiessling won the golden boot award in the Bundesliga last term with 25 goals, yet the most recent of his six international caps came almost three years ago.
He was overlooked by Joachim Low for a post-season tour of the United States, even though the Germany coach acknowledged his goals and performances had not gone unnoticed.
With a chance to underline his talent in the UEFA Champions League next season, Voller believes Kiessling will be going to Brazil next summer.
"If he plays another year like this, then Jog Low is not going to get away with ignoring Stefan," he said to the Bild newspaper.
"He must not give up hope. I certainly continue to believe in his chances of going to the World Cup."
Kiessling has yet to open his account for Germany, although the 29-year-old is just two short of a century for Leverkusen.
In a total of 293 appearances in the top two divisions of German football, Kiessling has scored 113 times.
The 25-year-old Spaniard helped fire Celta to safety last term with 12 goals in 34 league fixtures and has become Brendan Rodgers' third signing of the summer at Anfield.
Aspas told the Liverpool website: "It wasn't a tough decision at all. I'm really happy to have come to a big club like this one.
"Having weighed up all my options for this window, a massive club like Liverpool was always my first choice."
When asked about his strengths as a player and his favoured position, Aspas said: "I'm a quick and skilful player. Together we will achieve a lot of success.
"I've not had the chance to talk with the manager at any length just yet but I think that good players can slot into any role and not just one set position."
