CLEAN : Nigeria's table tennis star serving for seventh Olympics

The video discusses the importance of maintaining a youthful mindset and motivation in sports, emphasizing consistent practice and teamwork. It highlights the competitive nature of table tennis, where rankings do not guarantee outcomes, making the sport intriguing.

What does the speaker mean by saying 'Nigeria is not joking with table tennis'?

What is the significance of being ranked number one in table tennis according to the speaker?