The lineup of the Tianjin Tigers is facing a significant challenge - the vacancy in the central defender position. With the retirement of the experienced player Yu Yang and the imminent departure of Han Pengfei, the team's defense has become somewhat crippled. Currently, the Tianjin Tigers urgently need to add a local central defender, which has become an issue that the team management must face. Let's take a look at the current central defender lineup of the team to see how serious the situation is. Nowadays, although the Tianjin Tigers' central defender lineup is not lacking in potential players, there are very few who can truly step up to the starting position. Wang Zhenghao, although capable of playing multiple positions, hardly appeared as a central defender last season and was mostly used as a backup for other positions. Wang Xianjun, although physically fit, mostly played as a left-back last season, while Huang Jiahui's main job is as a midfielder, and he rarely gets the chance to play as a central defender. Therefore, it stands to reason that the team's defense should be worrying, and this vacancy also puts considerable pressure on the management. Speaking of Han Pengfei, everyone knows this experienced veteran. His departure means that the Tianjin Tigers' defense will lose an important pillar. With the expiration of this veteran's contract and his approach to joining Chengdu Rongcheng, the gap in the central defender position of the team becomes even more obvious. Although the Tianjin Tigers still have foreign aid Grant, the club does not plan to use a…