Caio Alexandre slotted in the visitors' second goal after Kanu's deft chip over Sport's defence left him face-to-face with Polli.
Xi'an, home to the Terra-Cotta Warriors and Horses, attracted 30,000 runners from 30 countries and regions to participate in its third marathon edition in 2019.
Adama used his time on the pitch to produce a man-of-the-match display, where he gave the Portuguese defense all sorts of problems with his pace and power.
"It was a tough match. We didn't play at our level in the first quarter, but changed our tactics into zone defense from the second quarter," Shanxi coach Li Ge commented.
The 27-year-old central-defender joined the Qatari team for a fee of 900,000 U.S. dollars. The report, however, did not specify the period of contract.
"It was the first game. We have to keep working and aspiring because we've only taken one small step," he added. Enditem
The first half produced only one solid chance when Slovakia's Ondrej Duda tested visiting goalkeeper Darren Randolph in the final minute.
The AFC Champions League East Zone will resume from the group stage and continue through the Round of 16 to the quarter-finals and semi-finals.
Zhejiang jumped into a 14-5 lead, before Henan regrouped and tied the first quarter at 23-23 through top draft Fang Min's stunning buzzer-beater.
Tianjin fought a close game for almost three quarters, but Beijing pulled away late in the third before outscoring Tianjin 29-16 in the final 10 minutes.
"Leo is happy to be in the national team and is doing well at his club now. From a distance, we wanted everything to be resolved so that he could start playing and get fit. For our part, I think it's positive that he has stayed because he has started to play. As for personal decisions, we don't get involved and we're not going to [comment]."