Monday set to be crunch time for Constitution Hill's Cheltenham chances
UNBEATEN: Constitution Hill & Nico de Boinville jump the last to win the Grade 1 Unibet Champion Hurdle. Picture: Healy Racing
Nicky Henderson expects a second blood test on Monday to be the "acid test" in Constitution Hill's race against time to be fit for the Cheltenham Festival.
The unbeaten and defending Champion Hurdle hero worked poorly at Kempton Park on Tuesday, putting his participation at the showpiece meeting in major doubt.
