Neymar will likely miss Barcelona's first match at the Club World Cup, his father told ESPN Brazil on Wednesday.

Barcelona are set to play the winner between Liga MX side America and Chinese club Guangzhou Evergrande on Dec. 17

The club on Thursday confirmed the minor groin strain but did not say for how long Neymar would be rested.

"The Brazilian's presence in the next few matches will depend on how the injury progresses," the club said via statement.

Neymar Sr. said his son's injury is "Grade 2, but it will keep him out at least for a week." Barcelona debut in the semifinal in the seven-team tournament, which gets underway on Thursday.

According to Neymar Sr., if Barcelona advance to the final, Neymar would play.

Neymar would play in the Club World Cup final should Barcelona win their semifinal, says his father. David Ramos/Getty Images

"They [Barcelona] are enjoying a great moment and if the club makes it past the first match, Neymar would play the final since Barcelona are the huge favorite to succeed Real Madrid as Club World Cup champion," said Neymar Sr.

Neymar suffered a groin strain as the Blaugrana trained at the BayArena ahead of Wednesday's game against Bayer Leverkusen.

The Club World Cup final is set for Dec. 20.