Robin van Persie’s coaching debut ended in defeat as Heerenveen lost 1-0 in their opening game of the new Eredivisie season to 36-time champions Ajax. 

Van Persie, who had previously managed at Feyenoord's academy, saw his side unable to recover from Kristian Hlynsson's goal on the stroke of half-time. 

The former Manchester United striker saw his side manage an expected goals (xG) of 0.39 from their seven shots on target, but believed his side deserved something from the encounter. 

“Based on the entire match, there might have been more in it,” Van Persie said shortly after the full-time whistle. 

“We had a few chances in the first half. We had hoped that one of them would have gone in and created a bit more belief.

"In the second half, you could see our intentions but we didn't really create any chances. 

With a week to prepare for their first home against Utrecht on August 17, Van Persie knows what he must work on with his players to get their first win on the board. 

“We are going to face FC Utrecht next week in high spirits," Van Persie added. 

“With this way of playing, I cannot promise that we will win every match, but in terms of intensity and sometimes also quality, this is football as I think you should play it. We will show that every week."

Robin van Persie has landed his first head coach role after being appointed the new boss of Eredivisie team Heerenveen.

Van Persie has agreed a two-year contract that will start at the end of the 2023-24 season, with the Dutch club confirming the deal on Friday.

Heerenveen missed out on European qualification this season and can finish no higher than 10th when the top-flight campaign concludes this weekend.

The club said in their statement they were convinced by the ambition and motivational skills of Van Persie, who starred for Arsenal and Manchester United in his playing career, winning the Premier League Golden Boot with both clubs, and the league title at Old Trafford.

That was as well as earning 102 caps and scoring a record 50 goals for the Netherlands at international level.

Van Persie said: "The coaching profession is comprehensive and challenging, and I've practised it with great passion and pleasure.

"I would like to continue my development and the role of head coach fits in perfectly with that goal. I am therefore pleased with the opportunity that Heerenveen offers me.

"Heerenveen is a very nice club with a rich tradition and loyal supporters. 

"It is a fantastic challenge to contribute to the sporting ambitions and development of the club."

While this is the 40-year-old’s first senior coaching role, he has been working under Liverpool-bound Arne Slot as a youth coach with Feyenoord.

He succeeds Kees van Wonderen – who announced his impending departure in March ahead of the expiry of his contract – at Heerenveen.

The club will finish their league campaign away against Sparta Rotterdam on Sunday.

"Although Robin is at the start of his career as head coach, he immediately convinced us," said general manager Ferry de Haan. 

"He is ambitious, passionate and eager to learn. I think he knows how to enthuse and motivate a squad of players."

Van Persie retired in 2019 and had two spells with Feyenoord at either end of his career, as well as a period playing in Turkey for Fenerbahce.

Police arrested a young male on Sunday after Groningen defender Jetro Willems was punched by a fan of his own team during an Eredivisie derby against Heerenveen.

Former PSV and Newcastle United player Willems was attempting to calm the home supporters at pitchside as tensions ran high when he was attacked, with the shocking incident caught by TV cameras.

Groningen were trailing 2-0 at the time, going into the closing stages, and the game was briefly paused as referee Serdar Gozubuyuk took the players off the field.

They later returned to complete the match, with no further goals scored.

The local police force, Politie Groningen, announced on Twitter: "A minor-age boy has just been arrested in #Groningen on suspicion of beating a @fcgroningen player during the match in the Euroborg [stadium] this afternoon.

"Another man was also arrested during that match, also on suspicion of assault. Both arrested suspects have been transferred to the police station and will be interrogated there."

Dutch defender Jetro Willems was punched by a fan of his own team in an Eredivisie game on Sunday after trouble broke out during Groningen's derby defeat against Heerenveen.

The 28-year-old Groningen player went over to an area of the ground where tensions were running high and attempted to calm the home supporters.

Instead, he ended up being struck by one fan who reached over others before taking a swing at Willems, with the shocking incident caught by TV cameras.

Groningen were trailing 2-0 at the time, going into the closing stages, and the game was briefly paused as referee Serdar Gozubuyuk took the players off the field.

They later returned to complete the match, with no further goals scored.

The incident could see Groningen face punishment, but former PSV and Newcastle United player Willems joked about it after the final whistle, telling Dutch ESPN: "I come from Rotterdam-Zuid; I can take a beating, right?"

He added: "I don't want to say too much about it. Everything gets blown up at some point. It is certainly not normal, but we will sit down with the club and then you will hear more later or tomorrow."

The game was played with an early kick-off, starting at 12:15 local time (11:15 GMT), with both goals coming before half-time from Sydney van Hooijdonk.

Groningen forward Elvis Manu reacted with horror to the assault, quoted by VI.nl as saying: "It's a pitch-black day. This must never happen.

"It's a great pity. One person ruined it for everyone. I think we had the crowd behind us from minute one. We have felt support.

"Too bad something like this happened. Everyone is very emotional, but this has no place on the football field."