In a friendly match between Guoan and Yatai, the outstanding performance of new signing Serginho has drawn widespread attention from fans. This player, who is about to complete his naturalization process, not only demonstrated excellent offensive and defensive capabilities in the game but also provided Chinese football with hope for solving the long-standing problem at the holding midfielder position! In this match against his former club Yatai, Serginho's performance can be described as perfect. He showcased his strong organizational skills and defensive awareness on the field, effectively stifling the opponent's attacks while quickly organizing counterattacks. Such an all-round holding midfielder is exactly what the national team urgently needs at present. It is worth noting that Serginho's naturalization process has entered its final stage. According to the current progress, he is likely to represent the national team in the crucial match against Saudi Arabia in March this year. This news is undoubtedly a shot in the arm for the national team coach Ivanković. Looking back, the national team has always had a weakness at the single holding midfielder position. Coach Ivanković has tried out several players, but the results have been unsatisfactory. Gao Tianyi, a Shanghai Shenhua player, is a typical example. After making a low-level mistake in the match against Thailand, he never got another chance to be heavily relied upon. Although Wang Shangyuan performed relatively stable in this position, his contributions in the attacking end were somewhat lacking. It is precisely against this backdrop that the arrival of Serginho becomes particularly important. After the end of last season, he…