SAO PAULO (AP) - Every time he scores, Ronaldo changes Brazil coach Dunga's mind.
Whether Ronaldo's comeback is successful enough yet to land him back in the national team, Dunga is keeping that to himself.
"Every player who is active and dreams of playing in the national team is being observed," Dunga said on Thursday. "We have to wait until May 21."
That's when he'll announce the roster for Brazil's upcoming World Cup qualifiers and the Confederations Cup.
Ronaldo is thriving in his return from the third serious knee injury of his career sustained with AC Milan in February 2008.
He has scored 10 goals in 13 matches since resuming his stellar career in March.
"Ronaldo never stopped scoring goals, and I believe Ronaldo can improve even more," Dunga said. "Since 2006, this is the first time he has a sequence of matches like this, so the tendency is to get even better.
"In 2006 I had an opinion of him, two months ago I had another, and now I have a different one. But there is still a year to go until the World Cup, so lets see."
Brazil will face Uruguay on June 6 and Paraguay on June 10 in qualifiers. The Confederations Cup is from June 14-28.
Ronaldo's latest goals were on Wednesday in Corinthians' 2-0 win over Atletico Paranaense to reach the quarterfinals of the Brazilian Cup.
He found the net with a shot from outside the area in the 55th minute, then converted a penalty in the 68th after being fouled inside the area. The goals were his third and fourth in the past three matches with Corinthians, which clinched the Sao Paulo state title on Sunday.
Since Ronaldo's return, local media and fans have been pressuring Dunga to call up the striker, who led Brazil to the World Cup title in 2002 in South Korea and Japan.
He also was a member of the 1994 World Cup team, which had Dunga - a former defensive midfielder - as its captain.
Ronaldo has been saying all along that one of his main objectives is to return to the national team.
"I'm a Brazilian soldier ready to serve if they feel I deserve a spot," Ronaldo said recently.
The 32-year-old striker has not been summoned since Brazil's elimination in the 2006 World Cup.-AP