The Brazil international has found his first-team opportunities limited this season, which is hardly a surprise given the arrival of two new big-name players at Parc des Princes in the summer transfer window.
PSG spent a world-record £198m fee on Barcelona forward Neymar to bolster their attacking line-up before agreeing to a loan deal for Monaco sensational Kylian Mbappe.
The two new signings have already scored a combined six goals and made eight assists to help PSG storm to the top of the Ligue 1 table after seven games this term.
Lucas has made just two substitute appearances in Ligue 1 and is facing an uphill battle to win back his first-team spot with such intense competition for a starting place.
Former PSG and Chelsea defender Alex urged Lucas to consider a move to Arsenal in the January transfer window to kick-start his season ahead of next summer’s World Cup.
However the PSG forward is focusing on winning back his place at his current club.
“Now I eat by following rules. I don’t eat pizzas and barbecue food anymore, despite how much I miss them,” Lucas told UOL Esporte.
“But I am concentrating on improving my physical performance. Whatever the situation with the national team, that is Tite’s decision.
“I need to concentrate on improving at PSG. The season began in a difficult way for me, but my aim is to win back my starting place and the great moments that I had last year.”
Lucas was linked with a move to Manchester United but opted to move to PSG in 2013.
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