Complex sentence: The members of the Seigaku regular team come watch the match: the vice-captain, Shuichiro Oishi, who has a calm and rational sense of playing sense, compliments the acrobatic plays of his double's partner, Eiji Kikumaru, making them the Golden Pair.
Split into simpler sentences: The members of the Seigaku regular team come watch the match. One is the vice-captain, Shuichiro Oishi, who has a calm and rational sense of playing sense, compliments the acrobatic plays of his double's partner, Eiji Kikumaru, making them the Golden Pair.