Thomas Tuchel bemoans Chelsea's costly defeat at Southampton

Romeo Lavia and Adam Armstrong condemned Chelsea to a 2-1 defeat as Southampton leapfrogged the lacklustre Blues in the Premier League.

Teenage midfielder Lavia became the first player born in 2004 to score in the Premier League with a fine strike at St Mary’s Stadium, before Armstrong broke a 22-game duck as Saints stunned Chelsea.

The visitors had led through Raheem Sterling’s third goal in two games, only for Southampton to turn the game on its head in a challenging night for Thomas Tuchel’s side.

Chelsea might be a team in transition with more big-name and big-money arrivals just around the corner courtesy of bullish new owners Todd Boehly and Behdad Eghbali.

But the top-four-hunting Blues should still not be in the business of losing against a remodelled and youthful Southampton.

Ralph Hasenhuttl’s rejuvenated Saints jumped ahead of Chelsea into seventh place in the table, with a major win for the south coast men.

The Blues were left to lick the wounds of two costly defeats on their travels, just five games into the new campaign.

Chelsea can expect to slip further down the embryonic table after Wednesday’s fixtures, with Tuchel’s rebuilding job clearly boasting great promise but not yet delivering.

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