conor o'shea , harlequins director of rugby , has ruled the 29-year-old out of saturday 's aviva premiership match against sale and he is not expected to face bath the following week that england star mike brown is still suffering from headaches and has taken no part in training or team meetings since he returned to harlequins .
brown was taken off after clashing with italy 's andrea masi during the six nations match in february .
brown has continued to suffer headaches nine weeks after his injury and has been advised not to play that