This article is part of Football FanCast's In Numbers series, which takes a statistical look at performances, season-long form and reported transfer targets...

Frank Lampard and co will be heading into the international break with a smile on their faces.

After beating Southampton 4-1 at St Mary's Stadium, Chelsea have now won their last four games, scoring 15 goals in the process. If anything, they probably wish they were able to carry on playing rather than stopping for two weeks.

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It was not all positive on the south coast though. Despite being captain, Cesar Azpilicueta will no doubt be worrying about his place in the side following his disappointing display.

The Blues were dominant bar a few minutes following Danny Ings' goal, which reduced the lead to 2-1. As such, you would have expected all of the Stamford Bridge outfit's players, including their full-backs, to have impressed going forward. However, that was far from the case in terms of the former Marseille man's showing.

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There are several stats that compound the fact he was off the pace. He lost possession no less than 21 times, which was easily the worst amongst his teammates, whilst he was only able to complete 73% of his attempted passes. He attacking contribution was almost non-existent down the right hand side, as he was unable to create a single chance or complete a single cross.

Defensively, he was slightly better, managing three tackles, but he still gave away two fouls. Only N'Golo Kante gave away more with five.

Against a Southampton side who never quite got going, Lampard will have been anticipating a lot more from his leader on the pitch.

It will now give him some thinking to do in regard to his options at right back. He has an alternative in Reece James and the promising youngster has done well so far, scoring once and grabbing an assist in his first two appearances for the club.

Should Azpilicueta continue to struggle, his position in the starting line-up could come under serious threat.