Manuel Queimadelos Alonso/Getty Images
Given Scolari's love of a target man, it is slightly surprising Jonas has not been given a chance to impress prior to the World Cup.
First-choice Fred was in scintillating form for the Selecao last year but his club form has been patchy. Jo, meanwhile, is inconsistent in front of goal and unlikely to strike fear into the world's sternest defences.
Jonas has been at Spanish club Valencia for over three years and his goalscoring record, whilst not perhaps as prolific as it could be, is still not to be dismissed.
This season he has 12 goals in 29 appearances, as per ESPN. But his ability in the air is what might have attracted him to Big Phil.
Operating in front of a trio of suppliers, Jonas possesses a more assured finishing touch than Jo and possibly even Scolari's favourite, Confederations Cup hero Fred.