David Loder has not ruled out Johnny Murtagh riding for his Newmarket stable in the future despite their association coming to an end after just three months.
"We had a good in-depth chat yesterday afternoon. We both agreed that it probably wasn't working quite how we'd intended," Loder said today.
"Unfortunately, that's the nature of life. It's a great shame. Life is full of disappointments and this is one of them.
"I very much hope that Johnny will continue to ride for the stable when appropriate. It's certainly not unamicable by any means."
Murtagh left his native Ireland last season after weight problems prompted him to end his long-term association with John Oxx.
Since joining Loder three months ago, he has ridden seven winners from 49 rides for the Newmarket trainer.
However, speculation of a split was fuelled when Murtagh was not named for either of Loder's two fillies in the Tattersalls Musidora Stakes at York today.
The Irish jockey's agent Ray Cochrane believes Murtagh will still get plenty of rides.
"He's a very good jockey and plenty of people have been very pleased with his riding," he said.
"I haven't heard a detrimental word said about him and as far as I'm concerned, it's still business as usual.
"He's suspended tomorrow, then he's got six rides at Salisbury on Thursday, five rides at Newbury on Friday and five on Saturday.
"He's a very popular jockey and everybody's happy with him."