"No one is coming to play today."
Translation:आज कोई खेलने नहीं आ रहा।
The construction for any form of "to go to do sth." seems to be the oblique form of the infinitive, e.g. खेलने or करने etc. + the form of जाना. The respective form of जाना agrees with the subject of the sentence in gender and number whereas the verb before always seems to be in oblique infinitive, i.e -ने.