Earlier this week Barcelona striker Luis Suarez admitted he was nervous at the prospect of playing alongside Neymar when he joined the club. And if antics in training are anything to go by the former Liverpool striker has every right to be a little worried. A video captured during one of Barcelona’s practice sessions shows Brazilian ace Neymar kneeing the Uruguayan forward where it hurts as the duo joked around in training. Brazilian ace Neymar aims a knee at the groin area of fellow South American striker Luis Suarez . Suarez reacts too late as Neymar puts his knee in where it hurts during a Barcelona training session . Neymar shows no remorse as he walks away from a stricken Suarez following his painful episode . Suarez slumps down as the pain from Neymar's knee reaches him during a Barcelona training session . Suarez sees the funny side as he quickly forgives his South American team-mate during a training session . Luis Enrique will be hoping the embarrassing pain wears off before the Catalans line up against Paris Saint-Germain at the Nou Camp on Tuesday night. Suarez has scored 19 goals in all competitions but most importantly he has found the net in key games. But, despite scoring 31 goals for Liverpool in the Premier League last season, Suarez admitted the prospect of proving himself in Barca's vaunted attack was intimidating. 'When I arrived I was timid with Messi and Neymar but they just said to me to play as I had done at Liverpool. ‘Now I feel fine off and on the pitch and we have a good time together,' Suarez told a news conference on Monday. 'I always have gone out to try and do well and I didn't listen when it was said that I was the best in the world or the worst. Suarez (centre) has scored 19 goals in all competitions for Barcelona since joining the club this season . Suarez (left) scores his second goal of the night as Barcelona go 3-0 against PSG on April 15 . Suarez (second left) admits he was nervous at playing alongside Lionel Messi and Neymar at Barcelona . ‘I am very self-critical and I carry myself the same,' Suarez said. 'When things were not going well for me I was grateful for the support of people close to me. The players always were behind me and so was the coach. 'At the moment I feel that I am helping the team with goals and assists but as long as the team is doing well then I am happy as well. ‘It is not important who scores as long as the team progresses.'
Luis Suarez receives a painful knee where it hurts from team-mate Neymar .
South American duo shared a joke in training ahead of Champions League .
Barcelona face Paris Saint-Germain at the Nou Camp on Tuesday night .
Suarez admits he was timid at the thought of playing alongside Neymar .
READ: PSG coach admits getting past Barca is 'practically impossible'