Tottenham face Barcelona at Wembley on Wednesday night in their second Champions League Group B outing.

Here, Press Association Sport looks at the key talking points ahead of the clash.

Real test

Totenham’s defeat at Inter Milan in their opening group game means the pressure has been cranked up for Barca’s visit. Spurs will be desperate for the sort of inspired Wembley display which so memorably accounted for Real Madrid in the group stage last season.

Kane sharp

Much has been made of Harry Kane’s relatively slow start to the season, but the England striker limbered up for Barca by scoring twice at Huddersfield on Saturday. The sharpness may be returning just in time for Spurs to kickstart their Champions League campaign.

Injuries bite

As well as Dele Alli, Tottenham will be without Christian Eriksen, Mousa Dembele, Serge Aurier and Jan Vertonghen at Wembley. If their squad suddenly starts to appear a little thin, more questions will be asked about the club’s failure to bring in reinforcements this summer.

Moura merrier

The absence of Eriksen and Alli will not be so keenly felt if Brazilian attacker Lucas Moura can shine. Moura has yet to add to the three goals he scored in August and needs to step up if Spurs are to trouble what looks a vulnerable Barcelona defence.

Messi magic

Lionel Messi was rested by Barca at the weekend in preparation for the trip to London, although he was summoned from the bench to create their equaliser. Despite Barcelona’s recent wobbles domestically Messi already has eight goals this season and will be eager to add to his tally at Wembley.