Johnson concerns over stable's health

Trainer Howard Johnson has expressed some concern about the health of his string ahead of this week’s Martell Cognac Grand National meeting at Aintree.

Johnson has a number of leading chances at the fixture including Inglis Drever who tackles the Martell Cognac Makro Mersey Hurdle on Thursday, Valley Henry who could run in the Martell Cognac Cup and Royal Rosa who could line up for the inaugural running of the Liverpool Hurdle.