I doubt you will read these few lines, but they make it clear that this describes what Paul says in his letter to Corinth.Saul was the name he was given by his birth family.
Paul (Paulus) was the name we see writing the letters to the Gentiles, his mission field. Jesus changed that man on the Damascus road into a "new man". Paul never boasted about his own work as much as used his life as an illustration to point at Christ.
Acts 9: 9 Meanwhile, Saul was still breathing out murderous threats against the Lord’s disciples. He went to the high priest 2 and asked him for letters to the synagogues in Damascus, so that if he found any there who belonged to the Way, whether men or women, he might take them as prisoners to Jerusalem. 3 As he neared Damascus on his journey, suddenly a light from heaven flashed around him. 4 He fell to the ground and heard a voice say to him, “Saul, Saul, why do you persecute me?”
5 “Who are you, Lord?” Saul asked.
“I am Jesus, whom you are persecuting,” he replied. 6 “Now get up and go into the city, and you will be told what you must do.”
7 The men traveling with Saul stood there speechless; they heard the sound but did not see anyone. 8 Saul got up from the ground, but when he opened his eyes he could see nothing. So they led him by the hand into Damascus. 9 For three days he was blind, and did not eat or drink anything.
I already posted those lines.
Paul does not SAY that “THE MAN” was him.