The game was brought forward to give Hammers' FA Youth cup players extra preparation time for their fifth round tie on Monday against Nottingham Forest at Upton Park at 7 o'clock.
"A draw was a fair result and we came from behind twice," says Tony.
Greg Pearson scored both the goals and Tony adds:
"Greg had a disappointing first half but had a better second half.
"His first goal was a very good one from the edge of the box when he came inside the defender and hit a real rasping shot that flew in waist high with power and accuracy.
"The second goal was after good work from Sos Yao, who had beaten a defender, came inside and laid it on a plate for Phil Lumsden who had his shot saved before Greg followed up to put the rebound in.
"It was a good all round performance with Phil Lumsden working very hard at centre back and then, when we changed it to chase the game a little bit and move to midfield, he did very well.
"Other than that, it must be said that Southampton are a very good side who haven't lost that many games at all - and we came close to defeating them.
"We have come through today's game unscathed and we are just waiting on Kevin Keen and his side because he has got three or four players in his squad that will play Monday night.
"We will have a training session on Sunday morning and count any wounded but hopefully we won't get to that stage, and we will be able to pick from a full squad."