The death of Cardiff forward Emiliano Sala in a plane crash a year ago will be marked by his family on Tuesday in “private, quiet contemplation of their loss”, their lawyer said.

The 28-year-old striker was killed when the small plane taking him to join the then Premier League side after being bought from French side Nantes for £15 million crashed off the Channel island of Guernsey.

There are still unresolved issues surrounding the player’s death, such as who was responsible for the crash in which pilot David Ibottson also died, and, above all, the payment of the 17-million-euro ($18.85 million, 17.6 million euros) fee agreed for his transfer.