The phrase "already specialised" is correct and usable in written English.
It can be used when referring to something or someone that has been trained or developed in a specific area or field prior to a certain point in time.
Example: "The team is already specialised in data analysis, which gives us an advantage in this project."
Alternatives: "previously trained" or "already focused".
Tiger Global Management, a New York hedge fund that is also a shareholder in DST, has already specialised in investing in start-ups beyond the West's well-known technology clusters.
High-quality continuous medical education must be ensured even for physicians already specialised in ICM.
Furthermore, the majority of practices are already specialised in for instance, cardiac rehabilitation, pulmonary diseases, sport-physiotherapy or neurological disorders, leaving little room for an additional (and time consuming) speciality.
There some already specialising in the above key issues like AMwA, which trains women in leadership and ACFODE, the leading indigenous women's organisation with a strong background in gender policy engagement.
Since cloud service providers want users to trust them and use their new services, isn't it reasonable to expect those same cloud service providers to trust other service providers who already specialise in authenticating and identifying users?
Apple and Android devices can already run specialised third-party ad-blocking browsers or be made to stop ads appearing by altering their network settings, but the point is that only a small percentage of people do this.
The nationwide introduction of the first five annual minimum volumes for German hospitals in 2004 seems to be of modest effect on the already highly specialised transplantation treatments.
Being one for avoiding the big bookstore chain, I turned to my trusted independent, hoping they might actually have it already, as they specialise in children's books.
Similarly, don't get too excited by the prospect of being able to specialise already.
The species, Mystrium camillae, was already known to have highly specialised appendages.
Already a heavy drinker, he specialised in dressing up in vaguely eastern robes and flaunting his equally flowing red hair - this at a time when to risk appearing either too Jewish or too effeminate was considered unwise even at the most advanced of art world parties, and to be both at the same time, unheard-of.
