In a round that saw several key players perform exceptionally well, Roma's midfield trio led the charge with their performances in Round 4. The trio consisted of Brazilian playmaker Edin Dzeko, Argentine midfielder Lautaro Martinez, and Italian winger Nicolo Zaniolo.

Dzeko, who has been in scintillating form this season, continued his impressive displays as he provided the finishing touch to a number of Roma's attacking opportunities. He was particularly influential in the second half of the match, where he combined effectively with Zaniolo to create chances for his teammates. Dzeko's ability to read the game and dictate the tempo of the match made him a constant threat to the opposition defense.

Martinez, on the other hand, showcased his versatility and skillset by providing a balanced presence in midfield. His passing range and vision allowed him to control the tempo of the game and provide support to his teammates when needed. He also played a crucial role in scoring the equalizer against Bologna, which helped to level the scoreline at halftime.

Zaniolo, meanwhile, showed his pace and creativity on the wing, creating numerous chances for his teammates and causing problems for the opposition defense. He also scored the opening goal for Roma in the match, which set the tone for the rest of the match.

Overall, the performance of Roma's midfield trio was crucial in securing a vital win over Bologna. Their ability to work together seamlessly and create scoring opportunities gave the team the momentum they needed to secure the victory. As such, it can be seen that their performances have been key to Roma's success so far this season.