Clarke has lashed out at the tournament for overlooking his match-play record. He also accused organizers of loading the field with IMG clients. The tournament is run by IMG, and Clarke is represented by a competitor, International Sports Management.
German - an IMG employee - told BBC Sports Online, 'We try to get a balanced field and that means different players every year. Darren played last year and has played in previous years, but there is no guarantee that he can play every time.'
He pointed out that three of the 12 who were invited are not IMG clients - Ernie Els, Fred Funk and Michael Campbell.
Clarke, 22nd in the World Rankings, said that IMG invited several players who are below him in the ranking. Fred Funk is No. 32, Mike Weir 34th, Justin Rose 40th and Nick Faldo 60th.
German acknowledged that fact. But, he said, 'We always have a young player - previously that has been Sergio Garcia, Seve Ballesteros and Bill Rogers, and they've all since enjoyed massive success.
'This year Justin Rose fills that category, and his place is totally justified. His performances this season merit his inclusion for one.
'Nick Faldo is here because he is one of the most successful British golfers in living memory.
'He has a fantastic record in the tournament and is always a very popular golfer across the course.'