Defender 300tdi clutch

Hi all
My clutch pedal has gone rock solid, while driving home yesterday in heavy traffic.
Can I take it thats my clutch gone, may seem obvious to some but is there something else that needs looking at.
I changed the slave cylinder last summer with a oem one, and theres fluid in the master.
Thanks all

Most likely the slave pushrod pushed through the clutch arm or the arm pivot worn through.

It's a box or engine out job so silly not to change the clutch while youre there.

I think I would slack off the slave bleed nipple just to be sure the problem is within the clutch. If you can then press the pedal down its not the mechanism jamming up and its a gearbox out job. I replaced a clutch on my old 109 because it was slipping, Haynes said clutch was not adjustable and being my first landy and way before the internet I was dismayed to find it still slipped. That's when I discovered the adjustable m/c pushrod.