Trainer David Oughton will decide today whether or not a minor knee injury will prevent globetrotting sprinter Cape Of Good Hope from defending his 2005 Australia Stakes victory at Moonee Valley on Saturday. Cape Of Good Hope suffered bruising to his left knee when third in the Lightning Stakes at Flemington on February 4, but Oughton had not believed it would affect his sprinter's start in the second leg of the Global Sprint Challenge this weekend. 'He suffered some interference in the Lightning which caused a bit of inflammation but we thought it had been dealt with last week,' Oughton said yesterday. 'With a couple of days' rest after the race, the swelling went down and there was no sign of anything with the knee. I had it scanned to be sure but there was no problem until he started doing some work again.' Oughton said he remained optimistic that Cape Of Good Hope would be at Moonee Valley for the race he won last year on his way to being the first sprint challenge champion. 'I don't think it is anything serious but I'll have it scanned again after he does some slow work [today] and if there is any question mark then he won't start,' Oughton said. If he is forced to miss Saturday's event, Cape Of Good Hope's next assignment may be in Dubai as he was not amongst the 11 entries yesterday for the Centenary Sprint Cup at Sha Tin on Sunday week. Douglas Whyte will ride Cape Of Good Hope in Melbourne and has already declared himself fit to compete tomorrow night at the Happy Valley meeting. Whyte and Chris Munce were pitched into the all-weather track last weekend when Whyte's mount, Asset Play, died mid-race but neither seems to have suffered too much damage. 'I'm a bit bruised but otherwise I'm fine and I'll get a clearance [today] to ride at Happy Valley,' Whyte said. Munce said he would ride work this morning before deciding whether he would ride tomorrow night.