Look Here will not be supplemented for Sunday's Prix de l'Arc de Triomphe and is unlikely to run again this season.
The Juddmonte Oaks heroine was originally entered in the Prix de l'Opera but emerged as a potential Arc runner when trainer Ralph Beckett hinted that she could be supplemented for the Longchamp showpiece.
He took her out of the Opera on Wednesday morning and stated that any decision on the Arc would be left to the last minute.
However, Beckett was not happy with the results of a blood test and confirmed on Thursday that the daughter of Hernando would not travel to Paris.
"Look Here will not be supplemented for the race. We had to run all the tests on her and we were not happy with her blood sample," Beckett explained.
"She looks fantastic and we have been happy with her work but you have got to be in top order for a race like the Arc so she will not run at the weekend.
"It is unlikely she will run again this year. She is entered at Newmarket so that is a possibility but I would say it is less than likely."