Probably none, I'm not really sure how rational such concerns would be. But I always found playing on artificial pitches tougher on the ankles (somewhere halfway between grass and the sprain-a-thon sports hall floor). I also find that once healed, ankle ligaments are also slightly stiff for a while, especially when you first get back into playing (there's no substitute for that in my experience, so another week probably makes no odds really).

In the end far better qualified people than me will make that call. My doubt stems from the fact that when you send a recently healed ankle out onto a grass surface you have a wealth of experience and even some trial data to base your risk assessment on. Much as an athletics coach will draw on lots of information about the same injury on track and road (you'll get much more pain on a track, but probably less risk of real damage). The knowledge on how they react on a 3G pitch is much less. It's more absence of the ability to make your risk assessment properly than any specific property being a concern.

Like I say, I'll trust the judgement of the medical staff. That's what they're trained and paid for.

I guess he will have done some work on the 3G pitch at Kirkstall this week, and they may make a judgment based on how he responds to that.

My thoughts too

Shaun Wane's rested a number of his players at Widnes for their last couple of games there and I'm sure I read that this had been precautionary. Whether or not this had any rational basis I'm not sure. Much as I'm impressed by Wane's coaching prowess, it wouldn't surprise me to learn that he routinely keeps sprigs of lucky white heather down his pants and such like.

Fair point. Forgot they had a 3G pitch down there to be honest.

It's lavender and its just for odour control so he doesn't have to wash them as often.

On the Keinhorst front, I'm not sure he's as limited as some people are suggesting. He's obviously still a work in progress, but there are just enough flashes of real class in some of his offloads and angles of running to suggest that there could be a really good player in there somewhere.

I've heard him called a "pet project" a few times, but I think he might be a project worth persevering with.

Looking at some of the Leeds training photos posted on twitter/instragram I think Watkins will be taking his place back off Keinhorst on Sunday.

If Watkins is fit, why wouldn't you play him?

The alternative is that his first game back is away from home against a Warrington left side of Waterhouse, Myler and Atkins. Hard enough at any time, never mind as a comeback after a few weeks out.

Don't disagree with playing him if fit, it's an obvious decision really - just stating a point

The 19 man squad in full is:
1. Zak Hardaker
2. Ben Jones-Bishop
3. Kallum Watkins
4. Joel Moon
5. Ryan Hall
7. Rob Burrow
9. Paul McShane
10. Jamie Peacock (c)
12. Carl Ablett
17. Ian Kirke
18. Chris Clarkson
19. Mitch Achurch
21. Richard Moore
22. Jimmy Keinhorst
23. Brad Singleton
26. Liam Sutcliffe
27. Thomas Minns
28. Jordan Baldwinson
30. Alex Foster

If Watkins is fully fit then Minns and Keinhorst drop out imo.