| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 19-Jun-2000 | Lorenzo Staelens | Belgium | 30-Apr-1964 | 36(50) |
| 19-Jun-2000 | Filip de Wilde | Belgium | 05-Jul-1964 | 35(350) |
| 02-Jul-2021 | Thomas Vermaelen | Belgium | 14-Nov-1985 | 35(231) |
| 22-Jun-1980 | Wilfried van Moer | Belgium | 01-Mar-1945 | 35(114) |
| 02-Jul-2021 | Jan Vertonghen | Belgium | 24-Apr-1987 | 34(70) |
| 17-Jun-2021 | Dries Mertens | Belgium | 06-May-1987 | 34(43) |
| 22-Jun-1980 | Julien Cools | Belgium | 13-Feb-1947 | 33(130) |
| 19-Jun-2000 | Luc Nilis | Belgium | 25-May-1967 | 33(26) |
| 19-Jun-1984 | Frankie Vercauteren | Belgium | 28-Oct-1951 | 32(235) |
| 02-Jul-2021 | Axel Witsel | Belgium | 12-Jan-1989 | 32(171) |
| 17-Jun-1972 | Leon Semmeling | Belgium | 04-Jan-1940 | 32(165) |
| 02-Jul-2021 | Toby Alderweireld | Belgium | 02-Mar-1989 | 32(122) |
| 16-Jun-1984 | Rene Verheyen | Belgium | 20-Mar-1952 | 32(88) |
| 02-Jul-2021 | Nacer Chadli | Belgium | 02-Aug-1989 | 31(334) |
| 19-Jun-2000 | Marc Wilmots | Belgium | 22-Feb-1969 | 31(117) |
| 17-Jun-1972 | Jean Dockx | Belgium | 24-May-1941 | 31(25) |
| 19-Jun-1984 | Rene Vandereycken | Belgium | 22-Jul-1953 | 30(333) |
| 17-Jun-1972 | Georges Heylens | Belgium | 08-Aug-1941 | 30(314) |
| 13-Jun-2016 | Laurent Ciman | Belgium | 05-Aug-1985 | 30(313) |
| 21-Jun-2021 | Dedryk Boyata | Belgium | 28-Nov-1990 | 30(206) |
| 21-Jun-2021 | Christian Benteke | Belgium | 03-Dec-1990 | 30(201) |
| 19-Jun-1984 | Jean-Marie Pfaff | Belgium | 04-Dec-1953 | 30(198) |
| 10-Jun-2000 | Jacky Peeters | Belgium | 13-Dec-1969 | 30(180) |
| 27-Jun-2021 | Eden Hazard | Belgium | 07-Jan-1991 | 30(172) |
| 19-Jun-2000 | Yves Vanderhaeghe | Belgium | 30-Jan-1970 | 30(141) |
| 19-Jun-2000 | Branko Strupar | Belgium | 09-Feb-1970 | 30(131) |
| 02-Jul-2021 | Kevin De Bruyne | Belgium | 16-Aug-1991 | 29(321) |
| 02-Jul-2021 | Thomas Meunier | Belgium | 12-Sep-1991 | 29(294) |
| 19-Jun-2000 | Gert Verheyen | Belgium | 20-Sep-1970 | 29(273) |
| 15-Jun-1980 | Marc Millecamps | Belgium | 09-Oct-1950 | 29(250) |
| 16-Jun-1984 | Paul Lambrichts | Belgium | 16-Oct-1954 | 29(244) |
| 19-Jun-2000 | Nico van Kerckhoven | Belgium | 14-Dec-1970 | 29(188) |
| 14-Jun-1972 | Wilfried Puis | Belgium | 18-Feb-1943 | 29(117) |
| 02-Jul-2021 | Thibaut Courtois | Belgium | 11-May-1992 | 29(52) |
| 17-Jun-1972 | Odilon Polleunis | Belgium | 01-May-1943 | 29(48) |
| 19-Jun-2000 | Gilles De Bilde | Belgium | 09-Jun-1971 | 29(11) |
| 22-Jun-1980 | Walter Meeuws | Belgium | 11-Jul-1951 | 28(347) |
| 18-Jun-2016 | Moussa Dembele | Belgium | 16-Jul-1987 | 28(338) |
| 21-Jun-2021 | Hans Vanaken | Belgium | 24-Aug-1992 | 28(301) |
| 22-Jun-1980 | Luc Millecamps | Belgium | 10-Sep-1951 | 28(286) |
| 17-Jun-1972 | Paul van Himst | Belgium | 02-Oct-1943 | 28(259) |
| 26-Jun-2016 | Marouane Fellaini | Belgium | 22-Nov-1987 | 28(217) |
| 02-Jul-2021 | Thorgan Hazard | Belgium | 29-Mar-1993 | 28(95) |
| 01-Jul-2016 | Radja Nainggolan | Belgium | 04-May-1988 | 28(58) |
| 02-Jul-2021 | Romelu Lukaku | Belgium | 13-May-1993 | 28(50) |
| 17-Jun-1972 | Jan Verheyen | Belgium | 09-Jul-1944 | 27(343) |
| 27-Jun-2021 | Yannick Carrasco | Belgium | 04-Sep-1993 | 27(296) |
| 21-Jun-2021 | Michy Batshuayi | Belgium | 02-Oct-1993 | 27(262) |
| 17-Jun-1972 | Raoul Lambert | Belgium | 20-Oct-1944 | 27(240) |
| 19-Jun-1984 | Leo Clijsters | Belgium | 06-Nov-1956 | 27(225) |
MD = Match date,
DOB = Date Of Birth,
A(D) = Age(Days).