The phrase "a known rival" is correct and usable in written English.
It can be used to refer to an opponent or competitor that is recognized or acknowledged in a particular context.
Example: "In the world of professional sports, every athlete has a known rival that pushes them to perform at their best."
Alternatives: "a recognized opponent" or "an established competitor."
With the new partnerships now out in the open and the updated site going live, Douglas wants to establish Punchbowl as a legitimate – and known – rival to Evite, whose longtime web presence has made it a brand users remember and return to for their party planning needs.
I was accepted in a few prestigious schools and went for Berkeley mainly because it sounded cool to move to California and also because, contrary to its well known rival, was very close to San Francisco.
String theory has a host of lesser known rivals for the mantle of quantum gravity, in particular a concept called, loop quantum gravity, which arose from work by Dr. Abhay Ashtekar of Penn State and has been carried forward by Dr. Carlo Rovelli of the University of Marseille and Dr. Lee Smolin of the Perimeter Institute for Theoretical Physics in Waterloo, Ontario, among others.
A male surrounded by a group of singing and known rivals should have satisfactory spatial information to orientate himself relative to other males and to detect potential reshuffles.
Among the members of this committee were known rivals of Hammond, including a man he described as a "vulgar ignoramus" and another he had denounced as "unscrupulous, dishonest, cowardly and ignorant".
Broker WH Ireland forecast losses of £1.8m, up from the previous estimate of £1.3m, but said the disappearance of well known rivals boded well for a recovery.
But FundedByMe aims to stand out from better known rivals including Kickstarter and Indiegogo by offering investors a stake in the projects they fund rather than the promise of early access to a product or some other benefit.
It competes with better known rivals and often comes out on top.Anthony Glyn's "Companion Guide to Paris" describes a collection of strolls along the Seine, down the Champs-Elysées, through museums, galleries and parks.
He knew rival candidates in exile.
Prosecutors allege the shots were fired by Winzer at people at the Rally's because it was a known hangout for a rival Bloods gang.
