Argentine legend Carlos Tevez admits he could hang up the boots at the end of the season.
The 32-year-old, currently playing with boyhood club Boca Juniors, has had spells with West Ham, Manchester United, Manchester City and Juventus.
"If we draw, Boca are in crisis - River [Plate] not so much," he said. "They [River] tie and play well, everything is nice. I enjoy football but not everything that surrounds it."
Tevez was also critical of the short-term approach to fixture planning, adding: 'In Europe you know what date you will play each team for the first six months.
"Here, you find out on Monday if you play on Friday. 'There is a possibility I could quit at the end of the year. I'm thinking about it."