Chelsea manager Antonio Conte is faced with tactical dilemma against AS Roma in the Champions League.
Andreas Christensen and Antonio Rudiger have provided Conte more options at the back line.
The performances of the new arrivals have put pressure on the incumbents at that position, this has given the tactician some serious concern when it comes to selections especially in big games.
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The team captain, Gary Cahil was rested during the weekend Premier League clash with AFC Bournemouth, David Luiz is certain to start over Andreas Christensen in the middle.
At the right wing-back, Cesar Azpilicueta will get the nod ahead of injured Victor Moses, with Rudiger shifting to the right of the three, or go more aggressive with Azpilicueta in the middle and Zappacosta wide right.
Conte is facing with selection problem at the backline, he needs to make the right selection in a bid to get the best out of his players.