Brazil striker Ronaldo admits he needs to do more if he is to earn another contract at AC Milan.
Ronaldo, whose current deal at the Rossoneri expires in June, has made just one appearance this season due to a series of injuries.
And the 31-year-old realises time is running out on his chances of remaining at the San Siro beyond the summer.
"I will only remain at this great club if I deserve it," said Ronaldo. "But I truly need to merit it."
Milan had hoped the former Real Madrid star would return to play at the Club World Cup, but he was ruled out at the last minute.
The Rossoneri went on to beat Boca Juniors 4-2 to clinch the trophy.
"I am not selfish," said Ronaldo. "I congratulate my team-mates for their achievement."
He is hoping to make a comeback in the near future but admits he has to be cautious.
"I want to play but we must treat the calf problem with calm and intelligence," he added.
And the 31-year-old realises time is running out on his chances of remaining at the San Siro beyond the summer.
"I will only remain at this great club if I deserve it," said Ronaldo. "But I truly need to merit it."
Milan had hoped the former Real Madrid star would return to play at the Club World Cup, but he was ruled out at the last minute.
The Rossoneri went on to beat Boca Juniors 4-2 to clinch the trophy.
"I am not selfish," said Ronaldo. "I congratulate my team-mates for their achievement."
He is hoping to make a comeback in the near future but admits he has to be cautious.
"I want to play but we must treat the calf problem with calm and intelligence," he added.
Copyright (c) Press Association
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