In-form Japan midfielder Shinji Ono netted his third goal in as many league games as Feyenoord put the disappointment of its Champions League exit behind it with a 2-1 away win at PSV Eindhoven in the Dutch First Division on Sunday.
National team midfield partner Shunsuke Nakamura also got on the scoresheet and set up another but struggling Reggina slumped to its seventh league defeat of the season after going down 4-2 away at Empoli in Italy's Serie A.
Ono, who missed Wednesday's 3-2 Champions League defeat at home to Newcastle United through suspension, gave Feyenoord the perfect start when he drilled the visitors in front with a well-placed half-volley in the 28th.
Feyenoord is in third place on 26 points, one behind PSV and four behind leader Ajax, which walloped NEC Nijmegen 6-0 at home.
In Italy, Reggina found itself 1-0 down after just three minutes as the league's joint top-scorer Antonio Di Natale converted the first of his hat-trick but Nakamura replied shortly after when he converted from the penalty spot.
Empoli goalkeeper Gianluca Berti brought down David Di Michele and Nakamura managed to squeeze the ball under Berti's body for his fourth goal of the season.
Jorge Vargas gave Reggina hope when he headed home a Nakamura corner nine minutes from time before Di Natale made the points safe by completing his hat-trick.
Nakamura departed for Japan after the match to join up with the national team for Wednesday evening's home friendly against Argentina.
Hidetoshi Nakata was also on the losing side as Parma was beaten 2-1 at AC Milan.
Elsewhere, Junichi Inamoto came on as a late substitute in nine-man Fulham's 0-0 draw at Birmingham City in the English Premier League.