Bellerin has started 27 games in all competitions for Arsenal, and signed a new six-year deal with the club in November.
Last January, Atletico and Real Madrid were banned from all transfers during the summer and winter windows.
Gab Marcotti dissects the rumours linking Eden Hazard with a summer move from Chelsea to Real Madrid.
Antoine Griezmann has again insisted he is "happy" at Atletico Madrid, amid interest from Manchester United.
Kylian Mbappe will move to a club like Real Madrid or Barcelona at some point in his career, according to his Monaco teammate Fabinho.
AC Milan winger Gerard Deulofeu believes early career comparisons with Lionel Messi at Barcelona created too much expectation among fans.