There was an eerie silence at the National Stadium last night as Jamaica’s 100m World champion Yohan Blake pulled up injured at around the halfway mark in his 100-metre showdown with eventual winner Kim Collins at the UTech Classic.

The extent of Blake’s injury is not known, but the good news could be that the double silver medallist at the London Olympics actually walked back holding his left hamstring.

Unconfirmed reports reach ing the Jamaica Observer is that Blake had a minor cramp and he decided to stop immediately upon feeling the unease.

Collins, 37, now residing and training in Jamaica, won in 10.25 seconds ahead of Julian Forte in 10.29 seconds.

Collins was concerned also, as he felt a cramp, but it was not enough to stop him from finishing the race.

“I felt my calves like they were going to cramp. I wanted to stop, but I said it will have to cramp and something has to give before you stop,” said Collins.

Up to press time, double Olympic 100m champion Shelly-Ann Fraser-Pryce was not in action, as she never turned up for the 200m.

But the UTech Classic was to have a stellar highlight as Jamaica’s Paralympic gold medallist Alphanso Cunningham twice broke the F52 and F53 javelin world record.

Cunningham threw 22.81m, shattering the previous best of 22.08m. Earlier he did 22.73 and was excited about smashing another world record.

“I just wanted to make a statement going to the World Championships and what better way to do it than doing a world record in your home country. I always wanted this opportunity to perform in my country and do something great,” said Cunningham, who won the Olympic gold last year with 21.84m.

Olympic 200m bronze medallist Warren Weir opened his season in his pet event with an easy-looking 20.33 seconds, well ahead of Daniel Bailey in 20.67 seconds.

A name to watch out for this season is Stephanie McPherson of MVP, who dismantled a good field in the women’s 400m invitational, stopping the clock at 50.74 seconds following a blistering first 300m.

She had behind her Sprintec’s Anastasia Leroy (53.54), with Racers’ Bobbi-Gay Wilkinson-Gooden in third in 53.67 seconds, some distance back. It appeared that, if pressed, McPherson could have dipped below the 50-second mark.