Neil Warnock admits he must wait to see which Cardiff players are in the right frame of mind to play at Arsenal following the disappearance of Emiliano Sala.
Cardiff will be playing their first match since the plane carrying record-signing Sala and pilot David Ibbotson went missing last week.
Warnock says some players have been affected more than others, and he will take that into consideration before selecting his side to play at the Emirates.
Cardiff defender Sol Bamba said Sala is a part of the team, despite not having had the chance to train with the club.
“It was a tough week for everyone, we’ve all been hurt and affected by it,” he said. “Everyone got together and obviously everyone has been talking to make sure we’re all OK. But it was a tough week.
“We tried to prepare as normal, but it would be fair to say it wasn’t a normal week.”
Cardiff are in the relegation zone in the Premier League after losing 3-0 to Newcastle in their last match.
Arsenal boosted their top-four hopes with a 2-0 win over Chelsea in their last Premier League outing.
With Chelsea not in action until Wednesday, the Gunners would move level on points with them if they beat Cardiff.
Arsenal have a defensive conundrum with Sokratis Papastathopoulos out for up to a month with an ankle problem and Laurent Koscielny likely to miss out.
Sokratis and fellow centre-back Koscielny were injured in last Friday’s 3-1 home defeat to Manchester United in the FA Cup, with the game expected to come too soon for the French defender – whose bruised jaw is being monitored daily.
Right-back Hector Bellerin, centre-back Rob Holding (both knee) and Danny Welbeck (ankle) are long-term absentees, while Henrikh Mkhitaryan (ankle) is back in training.
Cardiff captain Sean Morrison is definitely out as he recovers from an appendicitis operation.