German midfielder Havertz is expected to be one of next summer's hottest transfer properties after he said he could be on the move next summer.
Speaking to Sportbuzzer, Havertz said: "I am happy to stay at Leverkusen for one more year. What happens next summer will be experienced in the future."
The 20-year-old has been linked with interest from United and Liverpool as well as Manchester City and Borussia Dortmund.
And while he is contracted to Leverkusen until the summer of 2022, it is believed the Bundesliga club are ready to cash in.
Havertz scored 17 goals in the Bundesliga last season and has one to his name so far this campaign.