FC Porto, the only Portuguese team to make it through the group stages, will face the current leaders of the English League on the last day of the first leg games, on Wednesday, February 21st.
Almost three weeks later, FC Porto will play at the Gunners' home ground, the Emirates Stadium, in the second leg, on Tuesday, March 12th.
The first legs of the Champions League round of 16 will be played on February 13th, 14th, 20th and 21st, while the second matches are scheduled for March 5th, 6th, 12th and 13th.
The winners of this round will advance to the quarter-finals, the draw for which is scheduled for March 15th, when the pairings for the semi-finals will also be defined.
The final of the 2023/24 edition of the Champions League is scheduled for June 1st, at Wembley Stadium, in London.