These sportspersons are going to meet the President. Their performance has been excellent. (whose)
These sportspersons, whose performance has been excellent, are going to meet the President.
Explanation
To join the given sentences, we use the relative pronoun 'whose' to replace the possessive pronoun 'their'. 'Whose' is used to indicate possession and connects the two ideas by turning the second sentence into a relative clause that provides additional information about the sportspersons.
Solution Steps
Step 1: Identify the common subject (sportspersons) and the possessive pronoun in the second sentence (their).
Step 2: Replace the possessive pronoun 'their' with the relative pronoun 'whose' to show possession.
Step 3: Insert the modified second sentence as a non-defining relative clause into the first sentence, placing it after the subject 'These sportspersons'.