Chelsea U19s 0-0 Porto U19s: Young Blues held to draw but progress to UEFA Youth League knockout stage as group winners  

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Chelsea Under 19s were held to a 0-0 draw at home by their Porto counterparts in the final game of their UEFA Youth League group-stage campaign. 

Still, the result saw the young Blues finish top of Group G, unbeaten in six fixtures as they progressed to the competition's knockout round. 

There were seven changes to Chelsea's starting line-up since the 4-0 victory over Maccabi Tel Aviv two weeks ago. 

Chelsea Under 19s' Jake Clarke-Salter (right) tussles for possession with Porto's Maxi Pereira 

Blues defender Dujon Sterling (left) brings the ball forward during Wednesday's UEFA Youth League clash

Manager Adi Viveash put out his side in a 3-4-2-1 formation with Ike Ugbo starting up front after an impressive first half of the season with the youth team that has produced a dozen league goals.

Bradley Collins came into the side between the posts protected by a defensive trio consisting of Joseph Colley, Trevoh Chalobah and Jake Clarke-Salter, while Mukhtar Ali and Isaac Christie-Davies provided the midfield cover. 

Jay Dasilva and Charlie Wakefield were given the job of giving the side width on the left and right wing respectively, with captain Kasey Palmer and Josimar Quintero playing centrally up top. 

Wednesday night's match started slowly and both teams struggled to test the opposition goalkeeper early on. 

It took until midway through the first-half for Porto to test Collins properly as Ruben Macedo's low drive was tipped just wide.   

Joao Cardoso then had a close-range shot well blocked after a corner whipped in from the right and David Sualehe's rising effort was too high but the visitors were buoyed and took control of the clash. 

At the other end of the pitch, Palmer missed the target for Chelsea, spooning his shot from Wakefield's through ball. 

Sterling plays a pass during Chelsea's 0-0 Group G game against Porto in the UEFA Youth League 

Chelsea's Jay Dasilva (right) skips over the flailing challenge of a Porto defender at the Cobham training base

Viveash made a double substitution at the interval with Mason Mount and Jacob Maddox coming on in place of Palmer and Quintero. 

Mount made an instant impact as he weaved through a pass in behind the defence for Ugbo to chase, though the delivery carried slightly too much weight and the goalkeeper won the race for possession.

Costa continued his busy start to the second-half as he thwarted Ugbo at the near post with a smart save before gathering Clarke-Salter's header from the ensuing corner. 

There were some appeals for a penalty shortly after as Maddox went down in the box under a strong challenge, but the officials from Iceland waved play on and Mount's deflected strike rolled out into touch.

Chelsea striker Ike Ugbo (right) controls the ball under pressure during Wednesday's 0-0 draw