Athletic apparel manufacturer Russell Corp on Thursday posted a big jump in fourth quarter net income to $14.5 million from $9.7m in the year-ago period amid a one per cent rise in sales to $308.4m. The Atlanta-based company, which recently acquired uniform maker Bike Athletic for $16m, said it was pleased with the results which exceeded analysts expectations and added for fiscal 2003 it sees sales up between four and six per cent.