Chelsea and Manchester City are battling to become Premier League champions... but who has the edge in two-horse title race?

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Chelsea stars celebrate during the 3-0 win against Spurs, which saw their unbeaten run stretch to 21 games

Manuel Pellegrini (left) and Jose Mourinho are involved in a two-way Premier League title fight

Manchester City's recent resurgence has seen the reigning champions close the gap to six points

KEOWN ON THE DEFENSIVE UNITS

Thibaut Courtois’ mistakes are minimal and it never seems to be his fault when Chelsea concede — I’m not sure you can say the same about Joe Hart. 

Terry and Cahill are formidable and Ivanovic and Azpilicueta solid. Kompany is terrific but, Zabaleta apart, the rest are inconsistent. 

But the key is the work done in front of them. Chelsea’s pressing and the screen Matic provides means it’s almost impossible to isolate their defenders. 

City on the other hand are too often left exposed.

CHELSEA 8/10 MAN CITY 7/10

Chelsea keeper Thibaut Courtois (above) is rarely at fault if Chelsea concede a goal, unlike Joe Hart

Manchester City concede an early goal by Connor Wickham during their 4-1 defeat of Sunderland

Serbian midfielder Nemanja Matic (left) provides a defensive shield in front of Chelsea's back four

REDKNAPP ON THE MIDFIELD BATTLE

When everybody is fit, there is very little to choose between these two midfields. Signing Fabregas was a statement of intent and he has given Chelsea subtlety and class.

They have lost Lampard’s goals but Fabregas’ assists make up for it. Hazard could get into any team in the world and Matic is a perfect shield.

City have struggled to find that balance but injuries have disrupted them. People called Yaya Toure useless and unfit, but he scores a few and all of a sudden he’s purring and David Silva, when he’s fit, is a genius.