stay power(回答)
質問に回答します。内容はstaying powerの意味です。
Bolton teenage winger Ryo Miyaichi could be in line for his international debut after coach Alberto Zaccheroni named him in Japan’s squad for Wednesday’s World Cup qualifier against Uzbekistan.
“He (Miyaichi) has tremendous speed and staying power as well,” Zaccheroni said after selecting a 23-strong squad, including Miyaichi and 10 other Europe-based players, for the home match in Toyota.
staying powerは「耐久力、持久力」という意味です(『オーレックス英和辞典』旺文社)。ここでは文脈に合わせて,「一試合を通して走りきれる体力」と解釈できると思います。staminaという言い方がありますが,口語のstaying powerもこの機会にぜひ覚えましょう。(Sugiuchi)