Arsenal on alert as Van Persie misses Holland training with injury

• Arsenal striker sits out session due to groin problem• Dutch striker a doubt for England v Holland friendlyRobin van Persie has handed Arsenal a scare in their challenge to secure Champions League football after being forced to sit out the last section of Holland's training session at Wembley ahead of Wednesday night's friendly with England after feeling pain in his groin.The Dutch striker has become pivotal to the club's hopes of success this season after he scored 33 goals in all competitions in what has so far been his first injury free campaign since joining Arsenal in 2004.Following Arsenal's 5-3 victory over Tottenham Hotspur at the E...