Translation of the article content into English: Tianjin Jinmen Tiger had an impressive season last year! The fans were all thrilled, as if celebrating the New Year. However, our coach Yu Genwei remained grounded. He was thinking that the team still needed to strengthen, and internal potential also needed to be tapped! And then, a shocking news came out: Xie Weijun, the forward, is actually going to switch to center-back? Seriously, my first reaction was: Coach Yu, are you okay? Xie Weijun, that young man, has great momentum and accurate shooting. Why not continue as a forward but switch to defense? This move is even weirder than my ex's reason for breaking up! But then again, such unconventional moves are not unprecedented in Chinese football. Back then, Yu Dabao from Beijing Guoan was also a forward. In the national team match against South Korea, he scored the decisive goal and became a legend! Later, due to too many foreign players and fierce competition, Yu Dabao switched to center-back. Guess what? He continued to excel and maintained his starting position! So, is Coach Yu trying to replicate Yu Dabao's successful experience? The 27-year-old Xie Weijun has excellent physical fitness and decent footwork, and he really has the potential to switch to center-back. Moreover, in some games last season, he also played as a center-back, which might have been part of Coach Yu's plan all along. Now, why does Jinmen Tiger insist on letting Xie Weijun switch to defense? This is related to the personnel changes in the team's defensive line. At…