Zlatan Ibrahimovic is unsure of how many years he has left in football.
The Swedish striker has had a fine season for Manchester United but is out of contract in the summer.
He has been offered an extension at Old Trafford while a blockbuster switch to the MLS has also been mooted.
Ibrahimovic has remained coy about his United future and admits he may not have too long to go.
"I don't know how long I have left. Rashford, Lingard have long careers in front of them," he told BT Sport.
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"This season has been great but I'm always comparing my seasons to the seasons I've had.
"I'm happy I chose this club because I think this is the biggest club in Manchester, in England and one of the biggest in the world.
"I have nothing else to prove, everything has been said."
