first–string

first–string /ˈfɚstˈstrɪŋ/ adjective
first–string
/ˈfɚstˈstrɪŋ/
adjective
Britannica Dictionary definition of FIRST–STRING
US, sports
: most skillful
◊ The first-string players on a team play first in the game because they are considered the best players. This term is also sometimes used figuratively.
— compare second-string