The next day, as Yang Ping passed by the outpatient hall on his way to work in the morning, nurses were opening doors to various clinic rooms and promptly approached Yang Ping to report. Professor Zhang took a sick leave today; he cannot get out of bed.
Yang Ping thought Professor Zhang might have injured himself during yesterday's competition, so he immediately called to inquire. It turned out that Professor Zhang had overexerted himself during the match, resulting in full-body muscle soreness, making it hard even to get out of bed, let alone walk. Just getting up to wash was a struggle, assisted by his spouse. Yang Ping planned to visit Professor Zhang's house, but the professor insisted it was unnecessary and a few days of rest would suffice.
