The phrase "assertive player" is correct and usable in written English.
It can be used to describe someone who is confident and proactive in their approach, particularly in a competitive context such as sports or games.
Example: "The coach praised her for being an assertive player, always taking the initiative on the field."
Alternatives: "confident player" or "proactive player".
"He was an assertive player," Gutman recalls.
Now the Americans must open the Olympics against Norway and China, their toughest opponents, without their most assertive player.
Djokovic has been the sharper and more assertive player through the first four games of the second set, changing the direction of the ball and dictating rallies to take a 3-1 lead.
Brazil has become an increasingly assertive player at the World Trade Organisation and its influence inside bodies such as the G20, the IMF and World Bank is also growing.
So the Emir of Qatar has been a bold and assertive player in the Arab Spring.
While the Noda administration has much to gain by maintaining its newly activist foreign policy, the truth is that the U.S. and regional powers are unaccustomed to thinking of Japan as an assertive player in foreign affairs, and Japan can in reality do little more than maintain an engaged posture.
Levin contends that unforced errors are a more revealing statistic for assertive players who can become erratic.
Your game is garbage," And 1 portrays itself as a fierce proponent of the younger, more assertive players that frequently set the teeth of basketball purists on edge.
(Chinen) Jason Lindner, Jeff Ballard, Dwayne Burno (Saturday) Polyrhythm is the likeliest subtext of this ad hoc one-nighter, with Mr. Lindner on piano, Mr. Burno on bass and Mr. Ballard on drums — three assertive players working toward a collective sound.
Louisiana, one of the most assertive players in the subsidy game, wound up covering that outsize piece of the nearly $167 million budget of Mr. Pitt's "The Curious Case of Benjamin Button" — the state's biggest movie payout to date — when producers for Paramount Pictures and Warner Brothers qualified the coming movie, a special-effects drama, under an incentive that has since been tightened.
Arugula is also the assertive leading player in a salad that includes pears and peppery candied walnuts.
