Chelsea midfielder Christian Pulisic remains sidelined with an injury to his midsection and there is no timetable for his return.
The 21-year-old American has not has not played since New Years Day because of the injury to his adductor muscle.
'The projected time out was a lot less than what it's turned out to be,' manager Frank Lampard said Friday.
'However, I had a similar injury myself as a player and was out for three months, the worst injury I had, so I can certainly speak with him and sympathise.'
Lampard, speaking at his news conference ahead of Saturday's match at Bournemouth, called it a 'delicate injury.'
'Yes, I expected him back quicker,' he said. 'But knowing the injury, I can see it's a difficult one.'
Acquired from Borussia Dortmund last year for a $73 million transfer fee, Pulisic has five goals in 16 Premier League matches this season and six goals in 23 games overall.