The 27-year-old recently expressed his intention to see out his career at Villa Park but his manager insists the striker will have to wait until the summer to extend his contract
The 27-year-old striker recently admitted he is keen to commit his future to the club where he has spent the past 15 years, with his current deal set to expire at the end of next season.
However, when asked about Agbonlahor’s status as a one-club player, Lambert told reporters: "It's pretty rare now. There aren't too many around.
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"In years gone by you wouldn't find out what was happening to you until a week before the end of the season.
"Then all of a sudden it goes full circle and it becomes 20 months, two years [prior to the end of a contract when a player signs a new contract]. It's just strange in football.
"I understand what he is saying, but there is a long, long way to go before there's anything on that. The end of season is the time to look at these sort of things."
The Villa boss insists that Agbonlahor should focus his energy on recovering from the ankle injury that saw him miss last weekend’s draw with West Ham and looks set to keep him out of Saturday’s clash with Cardiff.
"He's obviously enjoying his football, although his injury is a bit frustrating at the minute," Lambert continued.
"The important thing for me is for him to get his ankle sorted and come back fit."