Inter Milan had been trailing Fiorentina with three minutes to go but broke through after Franck Ribery was substituted. Romelu Lukaku equalised on 87 minutes with defender Danilo D'Ambrosio nodding in two minutes later.
After scoring 34 goals last season for Inter Milan, Romelu Lukaku was disappointed with his FIFA 21 game ratings.
Sevilla beat Inter Milan 3-2 in a thrilling final in Cologne to win their sixth Europa League crown.
Inter Milan have not won any silverware for nine years, while Sevilla are eyeing their sixth Europa League title in 14 years.
Lautaro Martinez and Romelu Lukaku's prolific partnership has been the source of much of Inter Milan's success and they took their tally to a combined 54 for the season.
Manchester United set up a semi-final clash against Sevilla or Wolves, joining Inter Milan in the Europa League last four following the Italian side's victory over Bayer Leverkusen.
Manchester United edged LASK 2-1 and Inter Milan beat Getafe 2-0 on Wednesday in rescheduled ties due to the coronavirus pandemic to clinch places in the quarter-finals of the Europa League.
Inter Milan pulled back ahead of Atalanta, and within four points of leaders Juventus, who are poised to claim a 36th 'Scudetto' when they play Sampdoria.
Romelu Lukaku's penalty two minutes from time rescued a point for Antonio Conte's Inter Milan, who are second, five points behind Juventus.
Inter Milan are now 11 points off the pace with only eight matches of the season remaining and just one point ahead of fourth-placed Atalanta.
Inter Milan pull level on 54 points with Juventus but are ahead of the champions on goal difference thanks to a thrilling second half turnaround.
Sebastiano Esposito put away a second-half penalty which made him the youngest Inter Milan scorer since Mario Corso in 1958.
The Serie A match in the San Siro had been overshadowed by a racism storm after Italian sports daily Corriere dello Sport's controversial headline.
Juventus battled to a 1-1 stalemate at lowly Lecce, but the defending champions still stay top in Serie A as nearest rivals Inter Milan drew 2-2 with Parma.
Serie A: Romelu Lukaku and Lautaro Martinez each bagged a brace in a seven-goal thriller to keep Inter Milan second, a point behind Juventus.
Euro 2020: Romelu Lukaku took his record international tally past 50 goals as Belgium opened up an unassailable 11-point lead over third-placed Cyprus.
Kevin De Bruyne set up three goals inside the first 32 minutes before capping a brilliant individual display by rounding off the scoring.
Belgium's all-time top-scorer with 48 goals Romelu Lukaku has not played a single minute of Manchester United's pre-season campaign ahead of the move.