Scouts from both clubs were in attendance at the Stadium of Light in Lisbon on Tuesday as CSKA stunned Champions League Group A top seeds Benfica with a 2-1 away win.
Olanare, 23, is understood to be on the radar of several Premier League clubs, but Newcastle and Tottenham were following up on checks they made when CSKA beat Young Boys in the play-off round last month.
The Nigerian international is in his second season with CSKA, having signed on a free transfer from Chinese club Guangzhou Evergrande in January.
Olanare is under contract with CSKA Moscow until June 2021 and has been capped by Nigeria seven times.
Darren Ferguson declared his delight at a 'big win' for Doncaster after they saw off Bradford 2-0.
Doncaster took a major step towards securing their Sky Bet League One survival by beating Bradford 2-0.
Southampton manager Mark Hughes was delighted to see his new side reach the FA Cup semi-finals but also warned that the Premier League remains a concern.
Borussia Dortmund winger Andre Schurrle was delighted with the team's hard-fought 1-0 Bundesliga victory over Hannover 96 on Sunday afternoon.