Adelaide defender Alex Keath requires surgery on a leg fracture that puts a trade with the Bulldogs on hold, as reported by The Age.

The 27-year old nominated the Dogs as his preferred destination this off-season with the Saints also showing interest.

Both Victorian clubs discovered a crack in his shin after medicals and recommended surgery, with Keath convincing the Crows to book him in.

โ€œWe can report tonight that Alex Keath has actually undergone surgery last week on a crack in his shin that was found by both the Bulldogs and the Saints when they did their medicals,โ€ Sam McClure told The Age Real Footy Podcast.

โ€œThe Crows knew about the injury before the Round 18 game against Essendon. In a scan, they found a small stress fracture โ€ฆ in the bottom of his shin, just above his ankle.

โ€œThe Crows are saying itโ€™s not an uncommon injury and that it can be managed without surgery. He did actually continue to play, managing his loads and managing his pain.

โ€œBut fair to say the Dogs made it quite clear that if they were going to give him a long-term deal at pretty good money, he had to go under the knife immediately.โ€

Keath has reportedly been forced to cancel a holiday to get the surgery done, which will sideline him for at least three months.

His delay to pre-season means the Dogs will resist the Crows' push for a second-round pick.

โ€œHeโ€™s since undergone surgery, even though the Crows believe he didnโ€™t need it โ€” and heโ€™ll be out, the Dogs think, until at least January,โ€ McClure added.

โ€œItโ€™s pretty significant for a club thatโ€™s picking him up. It doesnโ€™t change the deal that theyโ€™ll be giving Keath, but it does change how they value the trade. It dilutes his value โ€ฆ I think the Dogs would say it gives them more leverage.โ€